At least 150 civilians may have died in attack on Burkina Faso village, says UN

Security forces accused of massacre in Karma, which locals say was carried out by men in military dress

At least 150 civilians may have been killed and many more injured in an attack allegedly perpetrated by Burkina Faso's security forces, the UN high commissioner for human rights has said.

In a statement on Tuesday, the commissioner, Ravina Shamdasani, called for a prompt, thorough, independent and impartial investigation into what it called the horrific killing of civilians" in the village of Karma, in northern Yatenga province.