A worker with the aid agency Goal has been killed in a helicopter crash in the Darfur region of Sudan.

25-year-old Hadja Hamid was being evacuated with other Goal workers following an escalation of violence in the Jebel Mara area of Darfur in recent days.

Four others were able to escape to safety from the UN helicopter, which crashed shortly after take-off.

Miss Hamid was Sudanese and had been working for Goal for the past six months on the agency's supplementary feeding programme.