ISLAMABAD, May 1 (Reuters) - The U.N. World Food Programme (WFP) said on Friday it had received unconfirmed reports that 100 people had starved to death in the opposition-controlled Hazarajat region in central Afghanistan.

In a statement issued in Islamabad, it said it had received reports from its field missions in war-torn Afghanistan that "tens of thousands of people may be facing starvation in the coming month."

The warring Afghan sides broke off peace talks in Islamabad on Thursday night for two days, because of what meeting sources called Taleban's refusal to accept an opposition demand to lift the blockade of Hazarajat.

The WFP said it had five missions exploring Hazarajat, home to some 1.2 million people, "who under best of circumstance eke out a rough living in mountain-clinging villages".

"The missions, some on foot, in trucks or on horseback, have been sending back preliminary information on pockets of severe hunger, dwindling food supplies and empty marketplaces," the WFP statement said. "They have filed unconfirmed reports of as many as 100 deaths by starvation -- mostly women and children."

The Taleban imposed its blockade on Hazarajat last year.