A U.S. Coast Guard search is underway after a woman sent out a distress call on Monday night just off the coast of Tiburon. "Minutes before 10 p.m., Coast Guard Chief Donald Newton said personnel heard the potentially distressed female over a marine radio channel," reports BCN (via SF Appeal) "There was a female saying 'Listen to me, listen to me,' followed by a pause, then 'hello,' another pause, and '10-4, I have mayday.'" Two Coast Guard vessels are still out in the waters looking for the unidentified female.