Russian claim Syrian rebel chemical depot exploded "not credible" - White House official

WASHINGTON (Reuters) - A Russian claim that Syrian civilians died in the explosion of a rebel chemical weapons depot hit by Syrian government aircraft is not credible, a senior White House official said on Wednesday. The United States continues to believe the Syrian government of President Bashar al-Assad was responsible for the chemical weapons attack that killed dozens, the official told Reuters. Of the Russian claim, the official said: "We find that not credible. We don't believe it." (Reporting By Steve Holland; Editing by Chizu Nomiyama)