Four people died in the attack, police have confirmed.
Mark Rowley, assistant commissioner of the Metropolitan Police, said the police were “satisfied at this stage it looks like there was only one attacker”.
The man believed to be the attacker is dead, he said.
Four people have died and at least 20 people were injured in the attack.
“Our strength as the city depends on our ability to stand together at such a terrible time,” he said.
Source : BBC