The United Nations says a U.N. helicopter was shot down in South Sudan and all four crew on board have died.

U.N. deputy spokesman Eduardo del Buey said Friday the South Sudanese armed forces informed the U.N. peacekeeping mission in South Sudan "that it has shot down the helicopter in the Likuangole area in Jonglei state."

Del Buey said the helicopter was on a reconnaissance flight to the area and initial reports indicate that it crashed and burned.