
Are the following mentions coreferent?:
<m> bombed </m> in A refugee camp in South Sudan's Unity state was bombed, South Sudan officials and witnesses said, threatening to raise tensions with Sudan in the violence- plagued border region. A Reuters correspondent heard a large explosion in the Yida refugee camp, then saw a crater about two meters ( 6. 6 feet ) wide, an unexploded bomb wedged in the side of a school building and a white aircraft flying north. 
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<m> bombed </m> in A refugee camp in South Sudan's Unity state was bombed on Thursday, South Sudan officials and witnesses said, threatening to raise tensions with Sudan. Khartoum denies that they carried out the strike. 