The suspect in a van attack on worshippers leaving a north London mosque screamed "I'm going to kill all Muslims" before he was tackled to the floor, according to a witness.
Abdulrahman Saleh Alamoudi said he was among a group of people helping an elderly worshipper who had fallen down, perhaps because of the heat, when the van swerved towards them.
He told BuzzFeed News: "This big van just came and went all over us.
"I think at least eight or 10 people got injured. Luckily I managed to escape. And then the guy came out of his van and I got him.
"He was screaming, he was saying, 'I'm going to kill all Muslims, I'm going to kill all Muslims'. He was throwing punches.
"Then we managed to get him on the floor. Then he was saying, 'Kill me, kill me'. I said, 'We are not going to kill you. Why did you do that?' He wouldn't say anything."
Salah Alamoudi said eight people were hit and up to three of them were in a "life-threatening" condition.
He said that they had to hold the suspect on the ground for up to half an hour before police arrived.
"The guy, I had to keep him at least half an hour. He was a strong guy. A big man," he said.
"It was heartbreaking. It wasn't an accident."