"It was an attack that once again targeted the ordinary and the innocent going about their daily lives - this time British Muslims as they left a mosque having broken their fast and prayed together at this sacred time of year", she said.
In Britain, some people cynically describe friendly relations between members of different faiths as "tea and samosas" and say the gathering of leaders at vigils like this is becoming a clich.
The attack, which followed three Islamic State group-inspired attacks in Britain, drew criticism from the Muslim community, which said police were slow to call the incident a "terror attack".
Police have said they are investigating the crash as suspected terrorism and have arrested the driver, a 48-year-old man who was taken to a hospital as a precaution.
"At the end of the day we only done what anyone else would have done - just showed him directions".
Labour leader and Islington North MP Jeremy Corbyn also visited the area, telling the BBC that "an attack on a mosque, an attack on a synagogue, an attack on a church is actually an attack on all of us".
Forensic officers move the van at Finsbury Park in north London, where a vehicle struck pedestrians in north London Monday, June 19, 2017.
The Muslim Council says a van has "run over worshippers" leaving the Finsbury Park mosque.
Others claimed he was ejected from the town's Hollybush pub on Saturday night for drunkenly cursing Muslims. He said: "I couldn't believe when I realised it was him who was accused". Many police cars and ambulances were responding.
The scene of Muslim residents grabbing and beating the white suspect demonstrated how close Britain could come to an explosion of ethnic tensions, observers said. Police are also looking into a statement made by his family that he was "troubled for a long time".
Farhia Ali, an IT student walking past the area cordoned off by police Monday, said she should not be held responsible for the actions of those who commit violence in the name of Islam.
His nephew Ellis told AFP: "We are massively shocked; it is unbelievable, it still hasn't really sunk in".
"After the London Bridge attacks, the social media was [in] overdrive with hate against mosques", said Shaukat Warraich, head of Faith Associates, a Muslim non-profit group in London that recently issued a report to mosques recommending enhanced security measures in the wake of Islamist attacks.
He said the man who died was a father of six children.
"There is a widespread distrust because it is felt that it targets just one community", she said.
The man, later identified as Darren Osborne, was arrested by police and has been charged with murder, attempted murder and various terrorism charges.
Other neighbors said that Osborne's behavior had become erratic in recent weeks, and that he was living in a tent alone in the woods after splitting up with his long-term partner.
Cressida Dick, the Metropolitan Police commissioner, called the incident "quite clearly an attack on Muslims".
Shadow Home Secretary Diane Abbott said the Prevent scheme must now undergo a "complete overhaul" to better encompass the diverse range of threats facing United Kingdom residents, including far-right extremism.