Iranian-backed Houthi militants attacked a Maersk container vessel with missiles and small boats, prompting the company to pause all sailing through the Red Sea for 48 hours, Maersk said on Sunday.
The crew of the Maersk Hangzhou crew was safe and there was no indication of fire onboard the vessel, which was fully maneuverable and continued its journey north to Port Suez, Maersk said.
The United States launched Operation Prosperity Guardian on Dec. 19, saying more than 20 countries had agreed to participate in the efforts to safeguard ships in Red Sea waters near Yemen.
In response, Maersk said on Dec. 24 it would resume sailings through the Red Sea. However, attacks have continued and US allies have proven reluctant to commit to the coalition, with nearly half not declaring their presence publicly.
Maersk, one of the world's major cargo shippers, said on Sunday it would delay all transits through the area for 48 hours, after the Maersk Hangzhou was struck by a missile at around 1730 GMT on Saturday 55 nautical miles southwest of Al Hodeidah, Yemen.
A US warship shot down another two anti-ship ballistic missiles fired from Houthi-controlled areas in Yemen, according to the US Central Command (CENTCOM).
Later at around 0330 GMT on Sunday, the same ship was attacked by Houthi militants in four small boats. An attempt by the attackers to board the vessel was averted after its security team and helicopters from the USS Eisenhower and USS Gravely, responding to distress calls, returned fire, according to statements by Maersk and CENTCOM.
The helicopters sank three of the militant boats, with no survivors, while the fourth boat fled the area, CENTCOM said in the statement.
The Singapore-flagged Maersk Hangzhou with capacity to carry 14,000 containers was en route from Singapore.