Nazanin is asked to describe solitary confinement, but says she would not be comfortable talking about it.

The reporter asks a different question: Did the UK tank debt hold back her release?

She says yes - while not knowing the details of the debt - but two or three weeks into her detention she was told by the authorities "they wanted something off the Brits and would not let her go until they had it".

The UK government had previously denied there was any link between her detention and the debt - but confirmed a debt of almost £400m was paid last week.

Next, Nazanin is asked about the advice she has been given to help recover from her experience.

She says it is too difficult to talk about what she has gone through.

She adds it will always haunt her and it is never going to leave her.

But for the moment she would like to focus on the positivity of coming home.

Nazanin said she was overwhelmed by her homecoming, and seeing her husband and daughter again after six years - "it was a very emotional moment".

"It's too early to think what will happen next," she adds.

Journalists then ask about the review Labour MP Tulip Siddiq has called for.

Richard Ratcliffe says he agrees the best way to do it is through the Foreign Affairs Select Committee, rather than a judicial review.

He says at times the family have been angry and blunt with the Foreign Office.

But he believes it will be useful to review what happened and what we can learn, as well as the wider issue of how the government deals with hostage taking.

Nazanin is asked how much she was aware of what was going on in the outside world while she was in jail in Iran, and the efforts being made on her behalf.

She says she did not have much information with only access to "safe" media in prison in Tehran.

She said she chose to spend time with her daughter, rather than follow the news: "I was not going to miss that opportunity."

She said she saw it as a means of survival, accepting that she was powerless to change events in jail

"I had to accept I am powerless in prison, I will see what will happen."

Nazanin said there would be a lot to catch up on news-wise now she was home.

Next, Nazanin is asked about her first Mother's Day together with her family this coming Sunday.

She says she didn't even realise it was coming up, but they did mark Iranian new year - Nowruz - yesterday.

With a smile, she says she will see how Sunday goes, as her husband Richard looks like he may have to make some plans.

Asked what her message is to others left behind in Iran, Nazanin says she is the lucky one.

She says everyone has a right to their freedom and the world should unite together to ensure other prisoners are free.

The questions from journalists now begin.

First up, she is asked if she feels angry with the government about how long it took.

Nazanin says she cannot be happier to be home, but this should have happened six years ago.

"I always felt like I was holding this black hole in my heart all these years... but I am going to leave that black hole on the plane," she says.

And she doesn't want to "hold a grudge" as the moment coming home is so "glorious".

Nazanin says the journey back home was "tough".

She says she has seen five foreign secretaries come and go over the past six years, and at times she felt she couldn't trust them as they kept saying they would get her home.

"How many foreign secretaries does it take?" she asks.

She says what has happened now with her being freed "should have happened six years ago".

And she concludes her statement by thanking the media for keeping their story in the public eye.

Before Nazanin's statement, her husband, Richard, spoke.

"Obviously you don't want to hear from me," said Ratcliffe, adding "it's nice to be retiring" after years of campaigning.

He said it had been "a long struggle... and I am immensely pleased to have her home - and proud of my wife".

He thanked the government, the Foreign Secretary and staff in the Foreign Office, Tulip Siddiq and all the MPs who battled for Nazanin, the media and all the public support.

"On all sides people were pleased [to learn she was coming home last week], people recognised the injustice - I am hugely grateful.

"It's a new chapter," he said

He praised his wife's survival and grace and joked they were still debating whether daddy was allowed in the same bed as Nazanin and Gabriella.

He says it's "baby steps" for them as a family - it "is a lovely reunion and I'm super proud of Naznin's strangth and grace".

Nazanin also thanks the medical team looking after her in Iran, and the families of other prisoners held in the country.

She says her lawyer "fearlessly fought" for her release.

And one more mention for her husband, and her "patient" daughter waiting for her to get home.

Nazanin Zaghari-Ratcliffe now begins her statement.

With a beaming smile, she says she is very grateful to whoever has been involved in getting her home.

She says she won't be able to thank everyone, but wants to give special praise for her family - especially those who have spoken up for her in Iran.

And her "amazing, wonderful" husband.

Orsi Szoboszlay
BBC News

Nazanin Zaghari-Ratcliffe appears happy and relaxed, as she holds her husband's hand under the table.

The couple are being watched by their daughter Gabriella, sitting in the front row.

Around 40 journalists and crews have gathered for the press conference at Portcullis House.

Only journalists who have been invited can take part.

The press conference begins with a welcome from Labour MP, Tulip Siddiq.

There's laughter as Ms Siddiq calls herself the Nazanin MP.

She praises the family's resilience through the past six years.

But the Labour MP calls for an inquiry into why it took so long to get her home and for the UK to pay off its debt to Iran.

And here is Nazanin Zaghari-Ratcliffe ready to speak at a press conference being held at the House of Commons.

We're expecting to hear a statement from her and her husband Richard before taking questions from reporters.

Stay with us for what she has to say.

Image source, Morad Tahbaz

As well as Nazanin and her husband, we're also expecting to hear from Roxanne Tahbaz, the daughter of Morad Tahbaz, a British-US national.

Mr Tahbaz, 66, was one of eight conservationists arrested in Iran in January 2018.

The conservationists, members of Persian Wildlife Heritage Foundation, were accused by authorities of collecting classified information about Iran's strategic areas under the pretext of carrying out environmental and scientific projects.

In November 2019 - despite previously denying all charges - they were sentenced to prison terms ranging from four to 10 years.

Tahbaz, who also holds Iranian citizenship, was released from prison on the same day as Nazanin Zaghari-Ratcliffe and Anoosheh Ashoori, with his family led to believe he too would be allowed to fly home.

But 48 hours later he was returned to jail. He is currently on hunger strike and has been moved to a hotel.

The Foreign Office says it is continuing to lobby Iran at the highest levels for Mr Tahbaz to be released.

Read the full story.

Nazanin and her family have arrived at the Palace of Westminster.

Ahead of the press conference she, her husband Richard and their daughter Gabriella were met by Speaker of the House Sir Lindsay Hoyle.

They were also joined by Nazanin's MP, Labour's Tulip Siddiq, who has been a leading campaigner for her release.

We’re expecting to hear from Nazanin Zaghari-Ratcliffe in a little over 15 minutes from now.

Join us here for full live coverage in text and video of the press conference, and you can also watch a live stream of it by clicking the play button in the picture above.

Image source, Getty Images

British foreign secretaries - including now-Prime Minister Boris Johnson - tried, and failed, to secure Nazanin's release for years.

Her husband, Richard, says she was told she was being held to force the UK into settling a multi-million pound dispute dating back to the 1970s.

Iran claimed the UK owed the country £400m as a result of a cancelled order for 1,500 British Chieftain tanks.

After Nazanin's release, the now-Foreign Secretary Liz Truss said the debt had been settled "in parallel" and "in full compliance with UK and international sanctions and all legal obligations".

She also said that negotiations had been taking place over the past few months with Iran, with the help of the Gulf state of Oman.

You can read more about how negotiations played out here.

Image source, Getty Images

Before her arrest, British-Iranian Nazanin Zaghari-Ratcliffe lived in London with her daughter Gabriella and her husband Richard Ratcliffe, working as a project manager for the charity Thomson Reuters Foundation.

In 2016, she travelled with her baby daughter to visit her parents in Tehran and celebrate the Iranian new year.

But when she returned to the airport to head home a fortnight later, she was arrested by members of Iran's Revolutionary Guard.

Nazanin was accused of plotting to topple the government in Tehran and leading a "foreign-linked hostile network" – accusations she has always denied.

What followed were trials, lengthy jail sentences, house arrests and years away from her home and family.

After years of campaigning and months of talks between the UK Foreign Office and Tehran, Nazanin was released alongside fellow British-Iranian Anoosheh Ashoori last week, and both were reunited with their families in the early hours of Thursday morning.

You can read more about her experience here.