Ten people were killed at a market in northeast Nigeria on Tuesday when a girl thought to be aged just 12 detonated explosives she was carrying, a relative of one of the injured victims and a health worker told AFP.

Hussaini Aisami said the young girl blew up at about 11:00 am (1000 GMT) in Wagir, in the Gujba district south of the state capital Damaturu, "killing 10 and injuring over 30".