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has rescued five Iranian sailors injured in an explosion that erupted on their vessel and seized its cargo of illegal , a statement said Thursday.

"US Navy personnel rescued five mariners December 15 after a fire caused an explosion aboard their vessel, which was smuggling illicit drugs while transiting the Gulf of ," the US Naval Forces Central Command, or NAVCENT, said.

"Sailors from Sirocco safely rescued five mariners injured in the explosion. One mariner remains missing."

Two of the five sailors, who identified themselves as , were immediately transported to Oman by helicopter for medical treatment, and the rest were later transported to Oman for repatriation.

"Mariners were observed pouring liquid on cargo and the forward deck prior to the vessel catching fire and exploding," US Navy spokesman Tim Hawkins said.

The statement also said that Sirocco seized more than two tonnes of drugs worth $14.7 million.

The haul included over 1,745 kilogrammes of , 500 kilogrammes of methamphetamine and 30 kilogrammes of heroin.

Sirocco is part of the Bahrain-based Combined Task Force 150, or CTF 150, which works under the Combined Maritime Forces (CMF) naval partnership.

CTF 150 said earlier this month that it seized more than 67 tonnes of drugs worth more than $189 million in operations in waters around the Gulf in 2021.

The CMF includes 34 nations whose vessels patrol 3.2 million square miles of international waters. The New Zealand navy took command of CTF 150 in July.