At least five people have been killed in twin suicide bombings in Nigeria.

News network Al Jazeera claims the attackers blew themselves up near a refugee camp and on a tricycle taxi in the north of the country.

The blasts were around a kilometre apart and came within half an hour of each other.

Civilian self-defence fighter Dan Batta told The Associated Press that two suicide bombers tried to enter a refugee camp, which houses more than 16,000 people fleeing fighting between the Boko Haram group and government forces.

The first blast went off around 7am local time (06:00GMT), Batta said.

He said a second blast came about half an hour later and about a kilometre away when a tricycle taxi carrying at least two people exploded.

Residents saw bodies being carried into an ambulance, Reuters is reporting.