A faction of the Pakistani Taliban claimed responsibility for a suicide bomb that ripped through a Pakistani hospital Monday, killing 70 people and wounding scores more. 

A spokesman for Jamaatul Ahara, which falls under the umbrella Tehreek-e-Taliban Pakistan group, told journalists via email that his faction "accepts responsibility" for the attack in the southwestern city of Quetta, and vowed more attacks "until the imposition of an Islamic system in Pakistan".