South Sudan crisis: UN helicopter crashes near Bentiu

Three crew died, while one survived, said the UN mission in South Sudan, adding that an inquiry was under way.

A UN official told the AP news agency the Mi-8 helicopter had apparently been shot down.

Thousands of people have been killed this year in bitter fighting between South Sudan's army and rebel forces.

Bentiu, capital of the oil-rich Unity state, has changed hands several times but a ceasefire agreement is currently in place.