Story highlights Dozens of attackers armed with machetes stormed Pambula-Kwamda village before dawn, a local government official says

Boko Haram militants were pushed out of the area in March, but raids persist

Kano, Nigeria (CNN) Boko Haram militants hacked 10 people to death in a Friday raid on a village in northeast Nigeria's Adamawa state, a local government administrator said Monday.

Dozens of Boko Haram insurgents stormed Pambula-Kwamda village in Madagali district, which the military recently declared free of the militant group, and killed 10 residents, Madagali local government Chairman Maina Ularamu said.

"Boko Haram insurgents on Friday attacked Pambula-Kwamda village, which is 5 kilometers from Gulak, the local government headquarters, where they hacked to death 10 people," Ularamu said.

The attackers, armed with machetes, stormed the village shortly before dawn, while residents were still asleep, he said.

"According to residents of the village, the attackers didn't have much weapons, and many of them carried no arms at all. They only fired a few shots when they were leaving after the attack.