Authorities in London responded late Saturday to reports of attacks on citizens in three locations near the London Bridge, as witnesses report what appeared to be a coordinated attack.
Multiple witnesses reported a vehicle veering off the road and hitting several pedestrians; others also said they saw a man with a knife.
Witnesses reported seeing injured people on the ground on the bridge.
One, Holly Jones, told the BBC a white van veered off the road and struck as many as six people. She said she saw at least four or five people on the ground.
“He swerved right round me and then hit about five or six people,” Jones said. “He hit about two people in front of me and then three behind.”
Another witness, Will Heaven, said he saw people who appeared to have been hit, and one being put into an ambulance.
"We saw injured people on the road, injured people on the pavement," he told Sky News.
He added that "it did not look like an accident", saying it was clear that police "thought they were responding to something far more serious than a road traffic accident."
A witness, who only gave his first name, Andrew, said that he was at a nearby bar and heard a “massive bang” that was a van hitting a railing.
“Next 10 seconds later, there was a guy with a big knife, I mean, a big knife,” he told LBC Radio, according to The New York Times. He reportedly said he saw a dead body and he hid for a while. He ended up running “for his life.”
A Borough Market witness identified only as Ben told the BBC: "We saw people running away and then I saw a man in red with a large blade, at a guess 10 inches long, stabbing a man, about three times. He continued, "It looked like the man had been trying to intervene, but there wasn't much he could do. He was being stabbed quite coldly and he slumped to the ground."
Tony Murphy, who is ex-military and lives near the area, was a second witness to tell Sky News of gunfire.
He said: "I thought at first it was fireworks then I recognized it was significant gunfire and that was the first instance.
"There was rapid fire because that's why I thought it was fireworks."
Will Orton, 25, said people came running inside the pub he was in close to Borough Market.
"We thought maybe there was a fight or something outside,” he told the Press Association. “And then there were almost hundreds of people coming inside.”
"The bouncers did a really good job, they shut the doors and locked everyone in. There was panic - it seemed like it was literally outside the door.”
The Associated Press contributed to this report