Boko Haram militants raided a village in southern Niger and murdered at least 15 civilians on Friday, Niger security sources reported.
The attack took place overnight during Eid al Adha, the Muslim festival of sacrifice in the village of N'Gourtoua in the Diffa region near Nigeria's border.
"There were at least 15 villagers killed, either shot or with their throats slit. Boko Haram also burned down a number of houses and looted shops," one of the sources said.
A second military source confirmed the killings but refused to give their names as they were not authorized to make any comment on the attack.
Boko Haram militant group has established a territory of its own in northern Nigeria as well as neighbouring countries in the area. They have used guerrilla tactics to bomb and set mosques on fire, along with markets, malls and bus stations.
A regional Multi-national task forces by Nigeria, Niger, Chad and Cameroon earlier this year recaptured some Boko Haram held territories in northern Nigeria. However, the militants since have launched a renewed tactic of deadly attacks and suicide bombings.
Meanwhile, Nigeria and its neighbours have struggled to repel Boko Haram militants within their countries. Nigerien security minister said that 643 people - reportedly having ties with the Boko Haram militant group - have been detained since February, 2015.
Boko Haram was founded in 2002 and has organised militant attacks in Nigeria, Cameroon, Chad and Niger since 2009.