Some members of the community suggested in the aftermath of Monday's Finsbury Park attack - which left one man dead and 10 injured - that it was not handled the same way as the attacks on London Bridge and Westminster attacks earlier this year.
Witnesses described him as white, with tattoos, while police later confirmed they had arrested a 48-year-old on suspicion of attempted murder, they added they were not looking for anyone else. "We don't yet know the full details, but this was clearly a deliberate attack on innocent Londoners, many of whom were finishing prayers during the holy month of Ramadan", Khan said.
The Metropolitan Police Service, already stretched by investigations of the earlier attacks and a high-rise apartment fire that killed at least 79 people, said it was putting extra patrols on the streets to protect the public.
In a statement, Finsbury Park Mosque said it was a "callous terrorist attack" and noted it had occurred nearly exactly a year after man obsessed with Nazis and extreme right-wing ideology murdered lawmaker Jo Cox, a former humanitarian aid worker. Tewfik Kacimi, chief executive of the nearby Muslim Welfare House, thanked the imam, saying his "bravery and courage helped calm the immediate situation after the incident and prevented further injuries and potential loss of life". "We will stay a strong city", the mayor said. We're not safe. If I stay here, people could come and attack me with a vehicle.
Kahn said: "While this appears to be an attack on a particular community, like the bad attacks in Manchester, Westminster and London Bridge, it is also an assault on all our shared values of tolerance, freedom and respect". "In the last 90 days or so, the country, and specifically London, is dealing with a high demand for counter-terror officers".
- March 22, 2017: A man drives his rented SUV into pedestrians at London's Westminster Bridge, killing four people, then stabs a police officer to death before officers shoot and kill him. Eight other people were taken to hospital, two of whom were seriously injured, he said.
"This morning, our country woke to news of another terrorist attack on the streets of our capital city: the second this month and every bit as sickening as those which have come before", she said. "Our whole message is that we are more powerful together".
According to the Home Secretary and the Prime Minister, counter-terror police believe they have sufficient resources, although the Government is reviewing its counter-terror strategy.
The head of Tell MAMA, Fiyaz Mughal, warned of reprisal attacks against Muslims following major Islamist terrorist incidents.
Hannah Jenkins, 23, who works in the local Spar shop, said: "I think everyone is in shock".
"Diverse, welcoming, vibrant, compassionate, confident and determined never to give in to hate".
"This is a attack on values of peace", a spokesman said.
It also follows a suicide bombing at a pop concert in Manchester, northern England, in May which killed 22, while in March, a man drove a rented auto into pedestrians on Westminster Bridge in London and stabbed a policeman to death before being shot dead.
Manchester was hit by a deadly attack on May 22 when a suicide bomber killed 22 people at an Ariana Grande concert.
Police arrested the man soon after.