
Are the following mentions coreferent?:
<m> air strike </m> in A refugee camp was the target of an air strike in South Sudan's Unity state on Thursday, less than 50 km ( 30 miles ) 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 metres ( 6. 6 feet ) wide, an unexploded bomb wedged in the side of a school building and a white aircraft flying north from the Yida refugee camp. 
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<m> killed </m> in The civilian death toll in Gaza increased dramatically today, with reports of more than 40 Palestinians killed after missiles exploded outside a UN school where hundreds of people were sheltering from the continuing Israeli offensive. James Mattiello, the regional director of the United Nations Relief and Works Agency in Gaza, said that there were reports of more than 40 people killed and several dozen wounded. 