French forces in northern Mali have killed a senior commander of the al Mourabitoun Islamist group who was wanted by the United States, a defencs ministry spokesman said on Thursday.

The United States had offered a $5 million reward for information leading to the arrest of Ahmed al Tilemsi, who took part in the 2011 kidnapping of two French nationals in Niger and three aid workers in Algeria later that year.

Al Tilemsi was a founding member of the Movement for Unity and Jihad in West Africa (MUJWA), which merged with fighters loyal to veteran Islamist leader Mokhtar Belmokhtar to form al Mourabitoun last year.