Yemen: Officials say 33 killed in violent clashes

SAN'A, Yemen — Yemeni officials reported Wednesday that 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 the fighting started after a government-allied tribe ambushed northern rebels.