WASHINGTON (Reuters) - The United States has seen no evidence of ethnic cleansing in northeastern Syria by Turkish forces in the wake of a U.S. pullout and has been assured by Turkey there will not be any, a senior Trump administration official said on Wednesday.

The official, briefing reporters on a ceasefire that had taken hold in northern Syria, said the United States still hoped Turkey would not deploy the Russian S-400 anti-aircraft weapon system as it has pledged.