Officials say 33 killed in clashes in Yemen
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Yemeni officials say 33 people have been killed in four days of fighting between government-allied tribes and northern rebels.
The clashes are the most serious in the northern province of Amran since the government and northern rebels signed a cease-fire in February to end years of bloody conflict. Local officials and tribesmen said Tuesday the fighting started after a government-allied tribe ambushed northern rebels. (AP)