U.S. says looking into reports of toxic gas dropped on Syrian town

WASHINGTON (Reuters) - The U.S. State Department said on Tuesday it was looking into reports that toxic gas was dropped on a Syrian town close to where a Russian military helicopter went down and, if the accounts were true, it would be "extremely serious." "If true, it would be extremely serious," State Department spokesman John Kirby told a news briefing. He said the United States was not in a position to confirm the veracity of the reports by a Syrian rescue service operating in rebel-held territory. (Reporting by Lesley Wroughton Editing by W Simon)