Two U.S. senators introduced bipartisan legislation on Friday that would impose sanctions on Turkey, citing concerns over military action by that country or groups that it backs, in northern Syria.

Senior US politicians are worried that a Turkish invasion of Syria's north-east region is imminent and are indicating they are prepared to impose sanctions on Washington's Nato ally.Republican Senator John Kennedy warned that he is concerned Turkey would invade Syria as the country works to rebuild after opposition forces removed Bashar Al Assad's regime after 13 years of war.

Turkey expects foreign countries will withdraw support for Kurdish fighters in Syria following the toppling of Bashar al-Assad, President Recep Tayyip Erdogan said, as Ankara seeks to isolate Kurds who have long fought alongside U.