"The gruesome videos of an apparent massacre by pro-government militias in Burkina Faso underscore the pervasive lack of accountability of these forces," Ilaria Allegrozzi, senior Sahel researcher at HRW, said in the statement. The incident took place in and around the city of Solenzo on March 10 and 11, the rights group said.

Militias allied with Burkina Faso's military junta have been linked to a "gruesome" massacre western Burkina Faso that left dozens dead this week, Human Rights Watch said late on Friday.Videos of the incident posted on social media show armed men wearing the uniforms of militias that have formed to aid the government's fight against Islamist groups,