In contrast to the great majority of terrorism in London and Europe in recent years, this appears to have not been inspired by radical Islam.
It is "too soon" to say if the man who was found dead was killed when the van hit pedestrians as he was already being given first aid by the public on the pavement, police said. "Terrorists will not succeed in their attempts to divide us and make us live in fear". In a statement Khan 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".
Prime Minister Theresa May will chair an emergency meeting on Monday morning.
"Our community is in shock, our thoughts and prayers are with those who have been affected by this", Mohammed Kozbar, the mosque's chairman, said Monday. "People are both scared and angry".
"Just as we stood together in Chesterfield in vigil against the Manchester attacks we now stand together against the attack".
Standing outside the door of Downing Street, she sought to convey that Britain would not fold in the face of the unprecedented series of horrific events - and that London in particular would stand as a bulwark against anything that sought to undermine freedom. These are the values that define this city, "she said". These are the values that this government will uphold.
"People feel unsafe because after the terrorist attacks of London, Manchester, the increase of Islamophobia and hate crimes", he added. Labour Party leader Jeremy Corbyn, who represents the area, uses the mosque as a place to meet with residents.
On June 3, eight people were killed and another 50 were injured when three Islamist militants drove into pedestrians on London Bridge and stabbed people at Borough Market.
Emotions are high in the United Kingdom in the wake of a series of deadly terrorist attacks and a fire at a London apartment building that killed dozens.
Another eyewitness, who gave his name as Athman, told AFP: "People were screaming: "It's a terrorist attack, it's an attack, this guy attacked us", and I had to run back and tried to save people who were still alive and giving water, helping the police".
In March, a man plowed a rented SUV into pedestrians on Westminster Bridge, killing four people before stabbing a police officer outside Parliament. He was also killed by police.
On May 22, a suicide attack killed 22 people and injured almost 60 after an Ariana Grande concert in Manchester.
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