A vessel was attacked in the Red Sea on Monday in a strike that U.S. officials said originated from Yemeni territory controlled by the Iran-aligned Houthi rebels.
The attack on the M/V Swan Atlantic was the latest in a series on ships sailing the sea since the start of the Gaza war.
There was no immediate claim of responsibility but the U.S. officials, who did not want to be identified, told Reuters the vessel was attacked by multiple projectiles launched from Houthi rebels-controlled territory.
The owner of the ship said it was hit by an unidentified object and that none of its crew had been injured.
Oystein Elgan, chief executive of owner Inventor Chemical Tankers, told Reuters the ship's water tank had been damaged in the attack but all the vessel's systems were operating normally.
Operator Uni-Tankers said in a statement the crew had brought under control a small fire after the vessel was struck on its port side. The ship was carrying vegetable oils and is sailing to Reunion Island.
Inventor Chemical Tankers has no ties to Israel, Elgan said. A U.S. Navy destroyer responded to the ship's distress calls by moving towards the ship, the U.S. officials said.
A British maritime authority said earlier that it had received a report of a possible explosion two nautical miles from a vessel located 30 nautical miles south of the Yemeni port of Mokha.
The United Kingdom Maritime Trade Operations (UKMTO) authority said in separate advisories it had received reports of a second incident 30 nautical miles northwest of Mokha and another incident 24 nautical miles southeast of the port. No other information was given in the reports.
It was not immediately clear whether any of the reports related to the M/V Swan Atlantic.
Two major freight firms including MSC, the world's biggest container shipping line, said over the weekend they would aviod the Suez Canal in response to the attacks by Houthi forces, which controls most of Yemen, a poor Arab state.
The Suez Canal shipping route, which leads to the Red Sea, is a vital waterway for global trade, used to transport energy and other goods between Europe and Asia, and elsewhere. The route saves on time and expense by avoiding having to navigate around the entire Africa continent.
The U.S. has said it is seeking an expanded coalition to protect ships in the Red Sea and to send a signal to the Houthis.