Updated

Seven peacekeepers have been killed in Sudan's Darfur region, the African Union-UN Mission said on Saturday, the worst-ever losses in the five-year history of the operation.

UNAMID released few initial details of the incident, which it said happened near the peacekeepers' base at Manawashi, north of the South Darfur state capital Nyala.

"Seven peacekeepers were killed and 17 were injured," said UNAMID's acting spokesman Christopher Cycmanick.

The incident happened about 25 kilometres (16 miles) west of another UNAMID base at Khar Abeche, north of the South Darfur state capital Nyala, Cycmanick said.

The patrol "was going from one team site to another," he added.

UNAMID did not immediately give the nationalities of the victims, but Tanzanian troops are in charge of that area.