An Army bomb disposal specialist waits as a house is searched in connection with investigations into the London bombings in the Hay Mills area of Birmingham.
London police believe this man placed a bomb between the Stockwell and Oval subway stations.
Police raid a home in Birmingham and arrest a man suspected of carrying out the July 21 bombings in London. Officers used a stun gun to subdue the man. They also arrested three other men in a separate pre-dawn raid at another home about two miles away.
Police arrested Yasin Hassan Omar at a Birmingham duplex in a raid carried out by dozens of police and bomb-disposal experts.
Omar has been identified as a legal British resident who retains Somali citizenship. British police are continuing their search for others involved in the string of attacks on London's transit system, which struck one week after a previous attack killed more than 50 people.
The most recent attack was foiled when only the detonators, not the explosives themselves, went off in a bus and three parts of London's subway.