Air strikes killed at least 50 people in rebel-held areas of Idlib and Aleppo on Saturday, just hours after Russia and the US announced a deal intended to put a stop to more than five years of fighting. Fighter jets believed to be Russian hit a crowded market in Idlib province on Saturday...

The United States and Russia hailed a breakthrough deal early on Saturday to put Syria's peace process back on track, though the war-torn country's rebels said they doubted it would hold and violence raged on in Aleppo. The agreement reached by the powers backing opposing sides in the...

Fighting raged on in southern Aleppo on Saturday, the army and rebels said, hours after the United States and Russia hailed a breakthrough deal to put Syria's peace process back on track. The army attacked rebel-held areas, pushing to maximize recent gains before a new nationwide ceasefire...

 The United States and Russia made progress on Friday on proposals for a nationwide ceasefire in Syria, but technical details still needed to be worked out, a senior official of the U.S. State Department said. A Russian official said the process was "stuck in Washington" after a day of...