Djokovic's brother Djordje thanks the judge who ruled in the case for, Djordje says, looking into the story "seriously" and "analysing every fact".

"We as a family found it very difficult, we are very emotional about my brother. It’s very difficult to defend Novak and not to offend anyone at the same time.

"We are fighters for justice and rule of law. We have done everything we could to follow procedures and to show everyone in the world we need to send love to Novak."

The Djokovic family press conference has begun in Serbia. Djokovic's father Srdan began by thanking people for attending the press conference.

He says the occasion is to celebrate the tennis player's victory.

"At the end he won, justice has won and the rule of law has won," he says.

If you're just joining us, here's a quick summary of what's happening:

• We're expecting to hear from Novak Djokovic shortly at a press conference with his family, after the tennis star won a court case meaning he can stay in Australia. It's due to start at 13:00 GMT
• The tennis star will appear at the Belgrade press conference by video link, his family say
• The Australian government is still considering whether to cancel Djokovic's visa again but there is not likely to be a decision on Monday
• Earlier on Monday, a judge ruled that the player could remain in Australia - and play in the Australian Open - because border officials treated him unfairly when he arrived in Melbourne
• Djokovic's current whereabouts are unclear but there were chaotic scenes earlier when fans swarmed a car they believed was carrying him from his lawyers' offices

Amy Lofthouse
BBC Sport

Image source, Reuters

Djokovic has been released from detention, but we still don't know for certain whether he'll make it to the tennis court. The Australian government still has the power to cancel his visa despite his victory in court earlier on Monday.

So why is the Australian Open so important to him?

He has won the tournament a record nine times in his career, including the last three editions of the Melbourne Grand Slam.

Djokovic, Rafael Nadal and Roger Federer have all won 20 Grand Slam titles - the most of any men’s player.

Djokovic has often spoken of his desire to surpass his two great rivals and go clear as the most decorated men’s player of all time.

He missed out on Grand Slam number 21 at the US Open last year, where he was beaten by Daniil Medvedev, but Melbourne always felt like the most likely place where Djokovic would win.

It is his most successful Slam and arguably the place where he has felt the most support from the crowd. That is likely to change should he compete this year.

Broadcaster and former UK political candidate Nigel Farage has tweeted a video in which he calls the reinstatement of Novak Djokovic's visa a "big victory for freedom of choice".

Speaking from the Serbian capital, Belgrade, where he's apparently a guest of Djokovic's family, he accused Australian immigration of using "nasty tactics" and "bullying" the tennis world number one.

Right now, it's unclear exactly where Novak Djokovic is, despite the tennis star being freed from detention.

Earlier, Djokovic was at his lawyers' Melbourne office - but around two hours ago a black car with tinted windows was seen leaving the building. Despite a crowd frenzy around the car, it was unclear if the tennis player was really inside. Police later told reporters he had left.

There were chaotic scenes as the vehicle was thronged by a crowd of fans, with some cheering "Free Novak!" and one jumping on the roof.

As supporters crowded around the vehicle, police fired pepper spray as they tried to clear a path. Reporters there say some of those hit with pepper spray used milk to wash it out of their eyes.

Former Wimbledon champion Marion Bartoli told the BBC she thought Novak Djokovic would physically ready to compete at the Australian Open, which starts on 17 January, but he may be mentally drained after the events of the past few days.

"I think he can work his way through the first week and build his momentum towards the second week, it's more how mentally and psychologically he will be affected by all of this," she said.

"He is really his best when he is under pressure and in tougher circumstances, but it is more about how the crowd are going to react.

"If he has the whole stadium against him booing or whatever. How much is that going to affect him? It's really hard to tell in advance."

Of course Djokovic may not get to the tennis court - his visa could still be re-cancelled by the Australian government.

UK Prime Minister Boris Johnson was asked if he would allow Djokovic to play at Wimbledon this summer.

Johnson replied: "It’s important for the Australian authorities to make their own dispositions. All I would say about Novak Djokovic – against whom I’ve played tennis by the way, he’s pretty good – is I believe in vaccination and I think it’s a wonderful thing to do."

He continued: "I think everybody should get behind the programme that is allowing this country to be the most open economy in Europe and simultaneously protect people up and down the land. It has massive advantages."

Under the current UK rules, unvaccinated people arriving in the country must have a negative pre-departure test, take a PCR test on day two and day eight after arrival, and quarantine for 10 days. The test to release scheme is still an option to those who want to shorten their isolation period.

The Telegraph’s chief sports writer Oliver Brown believes the visa dispute could "enhance" Novak Djokovic's performance at the Australian Open should he be able to compete.

"It could be quite ugly the atmosphere at the tournament," Brown told the BBC. "Assuming he does compete he will have a lot of support. There were Serbian supporters doing vigils for him outside the hotel where he was being detained.

"But you have to say in terms of his performance, that it could enhance it. We are talking about one of the most mentally resilient athletes there has ever been.

"You wouldn’t put anything past Djokovic, he seems to feed off adversity. Where other players might have buckled under this ordeal already and happily taken the next flight home, he appears determined to stay on and fight this."

On the political side of things, Brown predicted that Australia's prime minister Scott Morrison was "not going to take this lightly".

"He has a lot of political capital invested in Djokovic’s case. Don’t forget he has a federal election due in four months’ time, so Djokovic arrives in Australia as pretty much a heaven-sent political football for him. He wants to be seen to the Australian electorate as acting tough on this kind of thing and there should be no exceptions for anybody.”

Image source, Getty Images

Image source, Getty Images

Djokovic was held for several nights at the Park Hotel in Melbourne, an immigration hotel where refugees and asylum seekers have long complained of poor conditions.

The hotel has been housing refugees and asylum seekers since late 2020. It made headlines last year because of a Covid outbreak which saw about half of the refugees and asylum seekers held there test positive for the disease. A fire also broke out at the hotel in December. One person was hospitalised for smoke inhalation but there were no fatalities, reports say.

Speaking to the BBC from inside the hotel last week, one detainee, Mohammad Joy Miah, said he was feeling "mentally broken".

"I have not had any fresh light or fresh air from outside. My life is a room," he said.

A second Australian Open tennis player who also fell foul of visa rules - Czech doubles specialist Renata Voracova - was also taken to the hotel before flying home. She told reporters the facility was “a bit like being in prison”.

Read more:Djokovic stay highlights refugee concerns at hotel

Djokovic will give a press conference at 13.00 GMT alongside his family, his father told the BBC.

Srdan Djokovic said his son will join the family via video link for the planned press conference, which has been pushed back an hour, presumably to accomodate the player joining them after being released from detention.

There's been some controversy over whether Djokovic attended in-person events after receiving a positive Covid test result.

Here's what we know.

On 16 December, Djokovic's Covid infection was confirmed by a positive PCR test, a letter submitted to the court shows. The letter appears to say the test was returned seven hours after it was conducted.

On 17 December, Djokovic posted images to Twitter of his maskless appearance at a ceremony in which he was honoured with his own Serbian postage stamps in recognition for his achievements.

Also on 17 December, he posed maskless surrounded by a large group of young players at the Novak tennis centre.

And on 18 December, Djokovic posed maskless during a photoshoot for the French newspaper Équipe. The paper says he wore a face mask, external during an interview but removed it for the photoshoot.

It is unclear whether Djokovic knew he had Covid when the photos were taken. The issue doesn't directly affect any Australian decision on Djokovic's visa.

Australia's Immigration Minister Alex Hawke is still weighing whether to cancel Novak Djokovic’s visa, a spokesperson has confirmed.

The visa was reinstated on Monday by a judge, but Hawke can invoke his ministerial power to cancel it again.

"Following today's Federal Circuit and Family Court determination on a procedural ground, it remains within Immigration Minister Hawke's discretion to consider cancelling Mr Djokovic's visa under his personal power of cancellation within section 133C(3) of the Migration Act," the spokesman said.

"The Minister is currently considering the matter and the process remains ongoing."

The remarks are the first from the minister's office since the judge's decision earlier today.

There were chaotic scenes earlier outside the lawyers' offices as a black car with tinted windows left the building and was swamped by Djokovic's fervent fans.

They chanted "Free Nole" - a nickname for the star - and one was caught on camera jumping on the car's roof. We don't know if Djokovic was in the car.

The supporters started gathering outside the lawyers' office earlier this morning, after the player won his court battle to stay in Australia.

If you're just joining us, here's a summary of the situation:

• Novak Djokovic won his appeal against the cancellation of his visa and will be allowed to stay in the country for now. A judge ruled that border officials did not follow the correct procedures when the tennis star arrived last week
• The immigration minister had four hours after the judge's decision to decide whether to re-cancel Djokovic's visa while the player was in detention; that time has now elapsed meaning he is free to leave
• But the drama may not be over: Australia's Immigration Minister Alex Hawke may still intervene and re-cancel Djokovic's visa
• The men's world number one was earlier thought to be at his lawyers' offices in Melbourne - a car just left but we don't know for certain whether he was inside

Image source, Reuters

No decision will be made tonight on whether to re-cancel Djokovic's visa or not, the Sydney Morning Herald is reporting.

The government had four hours to decide whether to re-cancel the visa while Djokovic was in detention, but that time has now elapsed meaning the player is free to leave.

The immigration minister could still decide to cancel his visa however and may do so tomorrow.

In summary - the judge earlier decided that last week's cancelling of Djokovic's visa was unreasonable, but the immigration minister retains the power to cancel it again on different grounds.

Image source, EPA

One of Djokovic's fiercest rivals, Rafael Nadal, has described the visa situation as a "circus".

Speaking to a Spanish radio station Onda Cero on Monday, he said: "Whether or not I agree with Djokovic on something, justice has spoken and has said he has the right to participate in the Australian Open and I think it is the fairest decision to do so."

Nadal previously said he felt sorry for the tennis star but also said that he could be playing "without a problem" if he wanted to, and that deciding not to be vaccinated had "consequences".

Djokovic is attempting to surpass Nadal and Roger Federer's 20 grand slams to be the most successful male player.

Lines of police flanked the black car as it left the lawyers' offices and maneouvred through crowds on the packed Melbourne street.

"Free Novak! Free Novak!" supporters chanted around the car. We still don't know for certain if the player was inside.

And there's still no word on whether the Australian government has made a final decision on re-cancelling Djokovic's visa, after the court ruled that he be freed from detention nearly four hours ago.

Image source, Reuters

A black car has just left Djokovic's lawyers' offices. It had tinted windows so it wasn't clear if the player was inside, but crowds swarmed the vehicle chanting "Nole" - Djokovic's nickname.

We’re now into to the last 30 minutes in which the Australian immigration minister can revoke Djokovic’s visa.

Alex Hawke was given four hours to decide whether to exercise his “personal power of cancellation” and sources told the Sydney Morning Herald that he is considering it., external

The ruling was announced at about 17.15 local time (0615 GMT) which gives Hawke until 21.15 local time to act.