India, July 9 -- Drone strikes on civilian vehicles headed to social gatherings in Sudan have killed over 20 people in recent days, according to rights groups, as the use of unmanned aircraft becomes increasingly common in the north-eastern African country's war.

A drone hit the outskirts of Khartoum, killing 10 civilians, including five women from the same family, as they drove to a wedding, the Sudan Doctors Network said on Wednesday. The medical aid group, which has been tracking violence between the military and the paramilitary Rapid Support Forces throughout the war - which is in its fourth year - blamed Tuesday's attack on a road west of Omdurman, the sister city of the capital, Khartoum, on the RSF. All of those on the vehicle, w...