Six illegal miners died after sneaking into a goldmine in Burkina Faso, police said Thursday.
This led to angry scenes in which the mine was vandalised and vehicles were torched.
Seven others were injured after police fired tear gas, survivors say.
The artisanal miners “had smuggled themselves into the old chambers of the Bissa Goldmine” in northern Bam province on Wednesday, police said in a statement.
The miners had died because of lack of oxygen due to the depth of the holes, the statement added.
Seven other informal miners were found injured, of which one of those later died bringing the total death toll to seven.
Such mining incidents are all too common in Burkina Faso.
Illegal mining is common in Burkina Faso and the government has been urging the public to partner with the authorities in fighting it.
In recent years, gold has become a strategic sector in Burkina Faso that contributed more than 13% of the national GDP in 2019 from the 17 industrial goldmines in operation across the country.