An armed rebel group, the Movement for Oneness and Jihad in West Africa, or MUJAO, has claimed responsibility for an attack on the city of Gao in northern Mali and a suicide bombing the day before.

Hundreds of residents gathered around the heavily damaged police headquarters building in the center of the city early on Monday, where body parts lay strewn about a day after al-Qaida-linked rebels launched a surprise attack on the city.