A BBC investigation into a horrifying viral video which shows Cameroonian soldiers leading away and killing two women and two young children has been met with an extraordinary response.

At least 1.4 million people have viewed BBC Africa Eye's Twitter thread, which details how the team used forensic video analysis to pinpoint where and when the killings happened, as well as who was responsible.

Politicians, journalists and influential TV personalities are among the 42,000 people who have retweeted it.

The government of Cameroon initially dismissed the video as "fake news" but has since admitted that it has detained seven soldiers in connection with the killings.