US

US Navy fires warning flare at Iran vessel in Persian Gulf

FILE - In this May 26, 2004 file photo, the USS Mahan, a guided-missile destroyer, moves up the Hudson River in New York during Fleet Week. A U.S. Navy guided-missile destroyer fired a warning flare toward an Iranian Revolutionary Guard vessel coming near it in the Persian Gulf, an American official said Wednesday, the latest tense naval encounter between the two countries. (AP Photo/Ed Bailey, File)

FILE - In this May 26, 2004 file photo, the USS Mahan, a guided-missile destroyer, moves up the Hudson River in New York during Fleet Week. A U.S. Navy guided-missile destroyer fired a warning flare toward an Iranian Revolutionary Guard vessel coming near it in the Persian Gulf, an American official said Wednesday, the latest tense naval encounter between the two countries. (AP Photo/Ed Bailey, File)  (The Associated Press)

The U.S. Navy says a guided-missile destroyer fired a flare toward an Iranian Revolutionary Guard vessel in a tense encounter in the Persian Gulf.

Lt. Ian McConnaughey of the Bahrain-based 5th Fleet says the incident happened Monday.

He says the Iranian boat came within 1,000 meters (yards) of the USS Mahan.

The lieutenant says the Mahan "made several attempts to contact the Iranian vessel by bridge-to-bridge radio, issuing warning messages and twice sounding the internationally recognized danger signal of five short blasts with the ship's whistle, as well as deploying a flare to determine the Iranian vessel's intentions."

The Iranian vessel later sailed away.

Iranian authorities did not immediately report the incident on Wednesday.

The U.S. Navy and Iran routinely have tense encounters in the waters of the Persian Gulf.