UPDATE 1-U.S. may have brought down second Iranian drone last week -U.S. general

A U.S. Navy ship may have brought down a second Iranian drone in the Strait of Hormuz last week, the head of U.S. Central Command said on Tuesday.The United States said on Thursday that a Navy ship had "destroyed" an Iranian drone in the Strait of Hormuz after the aircraft threatened the vessel, but Iran said it had no information about losing a drone."We are confident we brought down one drone, we may have brought down a second," General Kenneth McKenzie told CBS News in an interview.