At least 100 civilians were killed by Burkina Faso government forces in March near the western town of Solenzo, Human Rights Watch said Monday.

According to victim testimony and videos shared on social media gathered by the rights group, the attackers were Burkina Faso special forces and members of a pro-government militia, the Volunteers for the Defense of the Homeland. The victims were all ethnic Fulani, a pastoralist community that is widespread across the region, which the government has long accused of supporting Muslim militants.

An earlier report from Human Rights Watch stated that the government’s involvement was likely, because of video evidence on social media, although the findings were not definitive.

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