OUAGADOUGOU (Reuters) – Gunmen killed about 15 people and wounded others in an attack on a mosque in northern Burkina Faso during prayers on Friday evening, a security source and a local official told Reuters.

The identity of the gunmen was not yet clear. This year an Islamist insurgency in Burkina Faso has ignited ethnic and religious tensions, especially in the northern areas bordering restive Mali.

Reporting By Thiam Ndiaga,; Writing by Edward McAllister; Editing by Raissa Kasolowsky