Twelve people have been arrested after the London terror attack that left seven people dead and 48 injured.
The arrests were made in the Barking district of east London, following a raid at a flat belonging to one of the attackers.
Three people carried out the attack on a London bridge Saturday, when a van hit pedestrians there.
The three got out and stabbed people at a nearby market before they were shot dead by police.
The attack is the third to hit Britain in less than three months and took place five days before a parliamentary election.