THE UN refugee agency UNHCR highlighted the dangers today of an outbreak of violence close to the South Sudan-Sudan border for aid workers and more than 100,000 refugees.

The UN body expressed its dismay at Monday’s killing of an aid worker in the latest outbreak of fighting.

It said that violence on the border is compromising the security of more than 100,000 Sudanese refugees who fled an earlier series of clashes in  Blue Nile state.