A senior Pentagon official said on Wednesday he was aware of reports of a new "exchange of fire" in Syria, a day after the U.S. military announced a series of air strikes in the country against facilities used by Iran-aligned militia.
"We'll tell you more when we know more," Colin Kahl, undersecretary of defense for policy, told a news briefing, adding that the U.S. military would not hesitate to defend its personnel.
(Reporting by Phil Stewart and Idrees Ali; Editing by Leslie Adler)
