Witness: Plane bombs South Sudan refugee camp

YIDA CAMP, South Sudan - A refugee camp was the target of an air strike in South Sudan's Unity state on Thursday, less than 50 km from the tense border with Sudan, a Reuters witness said.
There appeared to be no casualties.
The Reuters correspondent heard a large explosion, then saw a crater about two meters wide, an unexploded bomb wedged in the side of a school building and a white aircraft flying north from the Yida refugee camp. Witnesses at the camp said there were three other explosions at 3 p.m. (1200 GMT).