At least 60 people were killed on Monday in an explosion at a make-shift gold mine in a village near Gaoua in south-west Burkina Faso.
Dozens more people were injured, including women and children
It happened as explosives stored near a gold panning site blew up, local officials and witnesses said.
Most of the injured people were evacuated to the Gaoua regional hospital.
A regional prosecutor who visited the scene said an investigation had been opened into the tragedy.
