Dozens of suspected jihadists attacked a frontier post on Ivory Coast’s border with Burkina Faso before dawn on Thursday, killing around 10 soldiers, security sources said.

It is the first assault by Islamist extremists on Ivorian soil since March 2016, when a raid on the southeastern beach resort of Grand-Bassam left 19 people dead.

Thursday’s shooting attack “targeted an Ivorian frontier post at Kafolo,” where an anti-jihadist operation had just ended, one Ivorian source said, in an account confirmed by a Burkinabe source.