Sudan: at least 168 people killed in violence in Darfur region, aid group says

Fears death toll from Sunday's clashes could rise after armed tribesmen attacked villages of non-Arab Massalit minority

Clashes between rival groups in Sudan's Darfur killed at least 168 people on Sunday, an aid group has said, in the latest bout of deadly violence to hit the restive region.

Darfur, which was ravaged by civil war that erupted in 2003, has seen a spike in deadly conflict since October last year triggered by disputes mainly over land, livestock and access to water and grazing.