In a first, a United States Navy surface drone found ​and rescued two crew members from a US Army ‌Apache attack helicopter that went down in waters near Oman’s coast, the US military told Reuters, and President Donald Trump said the pilots ​were “fine”.

The US military’s Central Command said the AH-64 Apache ​went down at around 3am local time ⁠on Tuesday (2300 GMT on Monday) near the coast of Oman ​while patrolling regional waters.

It gave no reason for the crash. ​The US and Iran have been in an uneasy ceasefire, with periodic clashes and Iranian drone and missile strikes on US regional allies.

Central Command ​told Reuters the rescue was carried out by a ​drone but did not specify the model. The US 5th Fleet’s Task ‌Force ⁠59, which operates in the region, is a dedicated unit for integrating unmanned systems and artificial intelligence with everyday maritime operations.

Speaking on the runway at John F. Kennedy International Airport ​before returning ​to Washington, Trump ⁠said there was “nobody injured”.

“We are going to issue a report on that tomorrow,” he added, without commenting on what may have caused the incident

US Central Command used more cautious language to describe the condition ​of the two, saying they were in stable ​condition.

“The ⁠soldiers were safely rescued within approximately two hours and are in stable condition. The cause of the incident is under investigation,” ⁠it ​said in a statement.