Islamist militants killed four soldiers and nine civilian army volunteers when they ambushed a counter-terrorist operation in northern Burkina Faso on Thursday, the army said in a statement.
The troops, who were attacked in the centre-north province of Bam, fired back in retaliation and killed at least 34 assailants, it added.
Burkina Faso has been battling Islamist militants active in northern regions, some with links to al Qaeda and Islamic State, since 2015.
