Borno Police Commissioner Damian Chukwu said three blasts occurred near the Muna Garage area of Maiduguri, the city worst hit by an eight-year-old insurgency by Extremist Boko Haram terrorists, at around 04:30 a.m. (0330 GMT).
"There were four explosions inside the camp," the coordinator of the Muna camp Tijjani Lumani said. "The bombers struck at different locations around 4:30 am. The explosions triggered fires which burned down many tents", he said, adding that casualties details were not known.
(With inputs from AFP and Reuters)