Suspected members of the Boko Haram sect struck at Dalori internally displaced persons (IDP) camp in Maiduguri, capital of Borno state, on Thursday night.
A witness told TheCable that the attack took place around 9pm.
The witness said suicide bombers first struck before gunmen opened fire from different directions.
The source said the IDPs fled when the gunshots subsided and that security operatives have cordoned off the camp.
TheCable understands that most of the IDPs in the camp are from Bama local government.