Cairo blast: Isis-linked group claims responsibility

Islamic State-affiliated militants in Egypt have claimed responsibility for an explosion at a Cairo security building that left six police officers wounded.

The claim came in a message circulated on social media stamped with a logo reading “Islamic State, Egypt.” Isis insurgents based in Sinai have claimed a series of similar bombings in Cairo and elsewhere in Egypt.

The blast occurred just before 2am close to the national security agency building in Shubra al-Khaima, a neighbourhood on the northern edge of the Egyptian capital. The sound of the explosion echoed across Cairo, rattling windows and waking residents miles from the blast.