The U.S. Coast Guard (USCG) said it is investigating a sewage discharge from one of its vessels, the Coast Guard Cutter Morgenthau, at Coast Guard Base Sand Island, Tuesday. According to the USCG, at approximately 9:30 a.m. Monday a crewmember aboard the Coast Guard Cutter Morgenthau reported the smell of sewage to the Engineer of the Watch. The Engineer of the Watch went to the side of the ship and observed brown water flowing overboard through the sewage discharge port intended for use only at sea and immediately secured the system.