Two explosions killed at least nine people in northeastern Nigeria on Saturday. The bombs were detonated by suspected suicide bombers linked to extremist group Boko Haram.

NPR’s Ofeibea Quist-Arcton told our Newscast desk that “the two blasts came 30 minutes and about a mile apart in the Maiduguri area.” She said:

A Nigerian military spokesman says, in the first explosion, a suspected female suicide bomber ran into a group of men and women leaving a camp housing more than 16,000 displaced people. … In the second blast, a tricycle taxi carrying two passengers exploded outside a gas station.

The Associated Press adds that the attacks follows a “months-long lull” in Boko Haram violence, stemmed from a battle among the ISIS-affiliated group’s leaders.