Unidentified armed attackers killed at least 11 Burkinabe soldiers and wounded eight more in Burkina Faso's Est region on Sunday, four sources in the state military told Reuters.
The region is among those hit by rising insecurity as jihadist groups with links to al Qaeda and Islamic State seek to gain control over once peaceful territories in West Africa's Central Sahel region.
The sources did not share further details on the latest attack and there was no immediate comment from the government.