British police reportedly searched an address in East Ham, a neighbourhood in east London, on June 4, according to a Reuters photographer. The photographer reported a cordon outside the building and a large police presence.

Earlier on the same day, 12 people were arrested in the Barking neighborhood in east London, BBC said.

At least seven people were killed, dozens other injured, and three suspected attackers shot dead by police, in attacks called “terrorist incidents” by police, on London Bridge and nearby Borough Market on June 3.