London ? Anti-terrorist police arrested a 27-year-old man Tuesday for allegedly helping the suspected attackers after the failed bombings on London’s transit network this summer, authorities said.

Police raided two homes and a business in western London after the man was detained late Tuesday morning, a spokesman for London’s Metropolitan police department said.

“He has been taken to a central London police station where he will be interviewed,” the spokesman said on condition of anonymity in line with department policy.

The suspect is accused of aiding the alleged bombers after the failed attacks, officials said. He was arrested for offenses under Britain’s Terrorism Act.

Authorities have arrested 44 people in connection with the July 21 bomb attempts; 16 of them have been charged.