Twin suicide bombings kill 73

Security analyst says it is premature to declare IS militants are losing the initiative

A twin suicide bombing claimed by Islamic State killed more than 70 people in a Shiite district of Baghdad on Sunday in the deadliest attack inside the capital this year, as militants launched an assault on its western outskirts.

Police sources said the suicide bombers were riding motorcycles and blew themselves up in a crowded mobile phone market in Sadr City, wounding more than 100 people in addition to the dead.