TRIPOLI, Nov. 8 (Xinhua) -- Seven African migrants were killed and several others injured when a residential building collapsed in the Janzour district, west of the Libyan capital Tripoli, the International Organization for Migration (IOM) said on Friday.

"A three-story building housing African migrants collapsed last night ... leaving approximately 7 dead (including women and children) and several others have been rescued," IOM said in a statement.

"We express our condolences to the families of the victims," the statement added.

IOM said it is ready to assist the affected migrants and support authorities in the rescue operations. The cause of the building collapse is still under investigation. ■