Mustafa Field, director of Faiths Forum for London, says people in Finsbury Park are feeling "very nervous about the current situation".

He said: "We've been feeling a rise in anti-Muslim hatred, we know that hate crime in on the rise. People have been receiving letters, messages, threats of physical attacks and we saw what manifested yesterday."

"There is a real nervousness," he added.

He said the "solidarity" that had come out of the last 12 hours had brought "a calmness", but added that "we need to really think" about how to make people feel safer.

"We need to be calm, we need to be vigilant and we need to work together. Our unity is what will defeat terrorism," he added.

Image source, Getty Images

As police search a property in the Cardiff area - believed to be the home of Darren Osborne, who the BBC understands was arrested after the attack - neighbours have been reacting to the news.

Khadijeh Sherizi, who lives next door, said the suspected attacker was "so normal".

"He was in his kitchen yesterday afternoon singing with his kids. He was the dad of the family. He has kids. He lives next door. He seemed polite and pleasant to me."

Police patrols will be increased in Manchester in light of the Finsbury Park attack, the assistant chief constable of Greater Manchester Police says.

ACC Rob Potts said there was no specific intelligence to suggest Manchester was being targeted, but patrols would be increased close to places of worship.

He said there was a "significant policing plan" in place ahead of this weekend's Eid celebrations.

The Met Police earlier confirmed that officers were searching a property in Cardiff.

Images show a police van and a police car outside a property, where it is understood the search is continuing inside.

The BBC understands the man arrested for the attack is 47-year-old Darren Osborne.

It is also understood that he grew up in Weston-super-Mare, in North Somerset, and has four children.

Yvette Cooper, Labour's former shadow home secretary, said the Finsbury Park attack was on British Muslims, but also on "London, on Britain and on all of us".

The Labour MP said the UK must "stand firm" against extremism, "wherever it comes from".

She said there was evidence that there was rising Islamaphobia in schools - which she described as "deeply troubling" - but also in the media, in pubic debates and on social media.

Mrs Cooper called for "social media giants" to do more to take extremist content down from the internet, or face fines.

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BBC Radio 4

An expert on Islamophobia says "we need to be tackling Islamophobia in the same way we've tackled other forms of discriminatory phenomena".

Dr Chris Allen, a lecturer in social policy at the University of Birmingham, who helped to set up and used to sit on the government's Anti-Muslim Hatred Working Group, told Martha Kearney: "Islamophobia is not the same as extremism" and is "more akin to racism or homophobia."

He added that everyday experiences of Islamophobia for Muslims in the UK were "at street level" with physical or verbal abuse "perpetrated by ordinary people...not necessarily extremists."

The man arrested in connection with the Finsbury Park terror attack is Darren Osborne, 47, from the Cardiff area, the BBC understands.

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Local residents have been describing what they saw and say that they will come together because it is 'a tight-knit community'.

But they also say they were frustrated by the early reports of the attack.

'A lot of people feel angry with the way this was reported,' said one local resident.

Boxer Amir Khan, a British Muslim, said he believed the Finsbury Park attack was a form of "revenge" for recent terror attacks in the UK.

The former world champion told the BBC the attacks could spiral out of control and that unless something is done, "so many people are going to be killed".

"Communities just need to get together, we need to get together an fix these problems."

More people have been leaving flowers at the scene of the Finsbury Park attack, where one person died; nine were taken to hospital.

Image source, PA

Image source, PA

Image source, PA

Police say officers are also searching a residential address in the Cardiff area.

Deputy Assistant Commissioner Neil Basu said officers looking into the Finsbury Park attack were "working fast to know the full details of how and why this took place".

The force said it would deploy more uniformed police officers, while local and senior police officers will regularly meet faith leaders.

He said: "All the victims were from the Muslim community and we will be deploying extra police patrols to reassure the public, especially those observing Ramadan."

"We are conscious there are a number of events planned across London and the rest of the UK and we continue to ensure that security plans are robust," he added.

A Met Police statement just released said the 47-year-old man was arrested on suspicion of attempted murder and taken to a south London police station where he remains in custody.

"He has further been arrested for the commission, preparation or instigation of terrorism including murder and attempted murder."

Police said it is believed the suspect "acted alone", adding: "We are of course investigating all the circumstances leading up to the attack. There were no reports of any people having suffered knife injuries."

The man arrested after the Finsbury Park attack is also being investigated on suspicion of terror offences, Scotland Yard says.

The new Irish prime minister said Ireland showed solidarity and support for London after two attacks, and the Grenfell Tower fire in recent weeks.

Speaking at No 10 Downing Street, Taoiseach Leo Varadkar said: "London is a very important city for Irish people.

"I think pretty much everyone in Ireland has somebody who lives there who's a relative or a close friend.

"And when there's an attack on London, we feel in Ireland that it's almost an attack on us as well.

"So I just want you to know you have our solidarity and our support, and if there's anything we can do to assist we're ready and willing to do so."

One man has died and nine people are in hospital after a van drove into a crowd of people close to Finsbury Park mosque in north London.

Here's what we know so far:

• The attack happened outside the Muslim Welfare House shortly after 00:00 BST on Monday
• A group of people was helping an elderly man who had fallen in Whadcoat Street - off Seven Sisters Road
• A white van mounted the pavement and drove into people
• Eyewitnesses said the van had to be lifted off one victim
• Police say the man who had been receiving first aid died, although the cause of his death is unclear
• A 48-year-old white man has been arrested on suspicion of attempted murder
• Nine people are being treated in three hospitals, with some in a serious condition

• Theresa May said the attack "targeted the ordinary and the innocent going about their daily lives"
• The prime minister, Labour leader Jeremy Corbyn and Mayor of London Sadiq Khan have visited the scene
• Police are treating the attack as a terrorist incident

Read more here.

Speaking earlier, Labour leader Jeremy Corbyn told the BBC that people must be free to practise their religious faith.

Labour's Jeremy Corbyn told people at Finsbury Park Mosque that "an attack on any of us is an attack on all of us".