Erdogan tells Putin Syrian offensive is causing humanitarian crisis ReutersSyria's army encircles rebels in Hama, imposing 'choking siege' Al Jazeera EnglishTrump launched airstrikes after this town was gassed in 2017. Now Assad's military is moving in CNNSyrian army captures Hama rebel pocket in northwest: state media ReutersSyrian TV: Troops in control of northern Hama countryside Washington PostView full coverage on Google News