South Sudan cattle raid kills 140

At least 140 people have been killed in ethnic clashes in Southern Sudan, officials say, as aid agencies warn that the country faces a return to war.

Deputy governor of Warrap state Sabino Makana said members of the Nuer group attacked Dinka cattle herders and seized thousands of animals.

Most of the violence happened over the weekend in very remote areas, he said.

The UN says more than 2,000 people have been killed in ethnic violence in the south since January 2009.