British police said they arrested an 18-year-old man on Saturday at a Channel port in their investigation into the bombing of a London Underground train.

British police said Saturday they had arrested a new suspect in the May 22 terrorist attack at a pop concert in Manchester, bringing to 11 the number of men in custody.

The two men, aged 20 and 22, were arrested in north Manchester early Saturday after police gained entry to an address using a controlled explosion.

British police on Tuesday named the suspected attacker behind the Manchester concert bombing that killed 22 people as Salman Abedi, but declined to give any further details.

British police shot a suspected attacker outside the Houses of Parliament in London on Wednesday after an officer was stabbed in what police said was a “terrorist” incident.