An Islamic State leader has been killed in an air strike in the northern Iraqi city of Mosul, residents and a local medical source said on Thursday.

Radwan Taleb al-Hamdouni, whom the sources described as the radical militant group’s leader in Mosul, was killed with his driver when their car was hit in a western district of the city on Wednesday afternoon.

The ultra-hardline Islamic State swept through northern Iraq in June almost unopposed by the Iraqi army, consolidating gains made in the country’s Sunni heartland region of Anbar.