• In this image made from video and posted online from Validated UGC, a Civil Defense worker carries a child after airstrikes hit Aleppo, Syria, Thursday, April 28, 2016. A Syrian monitoring group and a first-responders team say new airstrikes on the rebel-held part of the contested city of Aleppo have killed over a dozen people and brought down at least one residential building. The new violence on Thursday brings the death toll in the past 24-hours in the deeply divided city to at least 61 killed. (Validated UGC via AP video)

    Syria activists say airstrikes in rebel-held Aleppo kill 20

    BEIRUT (AP) — Airstrikes and artillery killed more than 60 people in the past 24 hours in Aleppo, including dozens at a hospital in a rebel-held neighborhood, as Syria’s largest city was turned once again into a major battleground in the civil war, officials said Thursday.

  • FILE-- In this Fiday April 22, 2016, file photo, UN special envoy for Syria envoy Staffan de Mistura, right, and his deputy Ramzy Ezzeldin Ramzy attend a meeting with the Syrian government delegation during Syria peace talks at the United Nations office in Geneva, Switzerland. A military buildup in northern Syria coupled with heavy fighting and mounting civilian casualties spells the end of a cease-fire that for two months brought much needed relief to war-stricken Syrians, ushering in what could be an even more ruinous chapter in the country's five-year-old conflict. (Fabrice Coffrini/Pool Photo via AP, File)

    UN envoy appeals to US, Russia to help Syria peace talks

    GENEVA (AP) — The U.N. envoy for Syria appealed to the U.S. and Russia to intervene to help revive Syrian peace talks that sputtered to a pause Wednesday, saying a recent spike in fighting has overshadowed the talks and put an increasingly feeble truce in “great danger.”

  • In this Sunday, April 24, 2016, file photo made from video posted online by the Syrian Civil Defense White Helmets, Civil Defense workers run after airstrikes and shelling hit Aleppo, Syria. A military buildup in northern Syria coupled with heavy fighting and mounting civilian casualties spells the end of a cease-fire that for two months brought much needed relief to war-stricken Syrians, ushering in what could be an even more ruinous chapter in the country's five-year-old conflict. (Syrian Civil Defense White Helmets via AP video, File)

    Military buildup, fighting spells end of Syrian cease-fire

    BEIRUT (AP) — A military buildup in northern Syria, coupled with heavy fighting and mounting civilian casualties, spells the end of a cease-fire that for two months brought some relief to a war-weary country. The renewed violence is ushering in what could be an even more ruinous chapter in the 5-year-old conflict.