UPDATE 12:41 p.m. EST: Darren Osborne, 47, was reportedly named as the suspect.
WATCH | A man is in custody after a van rammed a group of Muslim worshipers in London.
UPDATE June 19, 9:51 a.m. EST:
The man accused of plowing a van into a group of Muslims leaving a mosque in London early Monday was captured on video blowing a kiss at bystanders as police escorted him to a hospital for a mental health evaluation.
Witnesses said the man appeared to intentionally drive the van into the crowd. The mosque's imam prevented the crowd from beating the suspect until authorities arrived.
The man was arrested on suspicion of attempted murder, the Associated Press reported.
UPDATE June 19, 6:28 a.m. EST:
Police have apprehended a 48-year-old man suspected of ramming a van into a group of Muslim worshipers, killing one person and injuring 10 others, in what police said was a possible act of terrorism.
According to police, bystanders intervened in detaining the assailant, who was later sent to the hospital. Police said the suspect will be put into custody once he is discharged.
London's first Muslim mayor, Sadiq Khan, called the incident a “horrific terrorist attack.”
"This appears to be an attack on a particular community, like the terrible attacks in Manchester, Westminster and London Bridge," he said in a statement.
ORIGINAL STORY: London's Metropolitan Police Service is investigating a "major incident" after receiving reports that a vehicle hit multiple pedestrians on Seven Sisters Road in Finsbury Park, London.
Officers and emergency services personnel responded to the scene Monday morning around 12:20 BST.
London's Metropolitan Police Service released a statement saying there are "a number of casualties being worked on at the scene."
One person was arrested at the scene, police said.
We have sent a number of resources to an incident in Seven Sisters Road. More information will follow when we have it.— London Ambulance (@Ldn_Ambulance) June 18, 2017
The London Ambulance Service said it was responding to the incident.
The incident reportedly happened near Finsbury Park mosque.
Britain's terror alert has been set at "severe" meaning an attack is highly likely.