(Al Jazeera) – The Cameroonian government is investigating a video circulating online that appears to show men in military uniforms shooting dead two women and two children for being suspected members of the armed Boko Haram group. The video, shared more than 9,000 times on Twitter, shows two women, one with an infant strapped to her back, being led by a group of uniformed men across a patch of dusty scrubland. “In front of you are the BH arriving that we have captured during an assault,” the man filming the scene is heard saying in French.