Second man arrested in London Tube terrorist attack probe

A 21-year old man was arrested at Hounslow Saturday in connection with a terrorist bombing on a London Tube train which left 29 commuters injured and was claimed by the Islamic State. The first suspect detained was an 18-year old who was picked up near Dover Port.  Assistant Commissioner Mark Rowley said police were "chasing down suspects," indicating suspicion of a possible terror network. Police have interviewed 45 witnesses and are inspecting 77 images and videos sent by members of the public.

Also Saturday, armed also raided an address in Sudbury south of London in their hunt for the bomb factory used by the Tube bomber. The elderly property owners were decorated by the Queen in 2009 for taking in hundreds of young people including refugees.