Ghana ? Two U.S. Navy sailors were found dead Tuesday in a hotel room in the West African nation of Ghana, the Navy said.

The Navy said the circumstances surrounding the deaths and the cause wasn’t immediately clear.

“The cause of death is unknown and is being investigated by host nation authorities in cooperation with U.S. Navy,” a Navy statement said.

The sailors, whose identities weren’t immediately released, were stationed aboard the USS Fort McHenry, which is on a seven-month voyage through the Gulf of Guinea aimed in part at training local militaries on maritime security.

They were found dead in their room at a hotel in Tema, where they had taken time off during the mission, the Navy said in a statement.