Ten members of Sudan's controversial counter-insurgency unit have been killed in clashes with fighters loyal to a powerful militia leader in war-torn Darfur. The official SUNA news agency said, clashes between troops from the Rapid Support Forces (RSF) and fighters loyal to Musa Hilal erupted when a unit of RSF was ambushed near Hilal. An RSF commander and nine other members were martyred when they were ambushed near Mustariaha.Mustariaha is the hometown and bastion of Hilal, whose fighters have reportedly clashed with RSF troops in Darfur several times in recent months.