Rescue efforts are under way with some of those on board still ‘unaccounted for’.
A rescue operation is under way after a United States military aircraft crashed off the northern coast of Australia with 20 Marines on board.
Several people were rescued, according to the Australian Broadcasting Corporation (ABC), after the Osprey V-22 came down near Melville Island about 60km (37 miles) from Darwin on Sunday.
One person was in critical condition, two were stable and there were no reports of fatalities, it reported.
Australia’s defence ministry said the accident happened during the annual Predator Run exercises involving the militaries of Australia, the United States, East Timor, Indonesia and the Philippines.
The Australian Defence Force (ADF) said no Australian personnel were on board the Osprey.
“At this critical early stage, our focus is on the incident response and ensuring the safety of those involved,” the ADF said in a statement. “More information will be provided when appropriate.”
The US and Australia, a key ally in the Pacific, have been stepping up military cooperation in recent years in the face of an increasingly assertive China.
Four Australian soldiers were killed last month when their helicopter crashed into the sea off the coast of Queensland.
The aircraft had been taking part in Talisman Sabre, a joint military exercise involving a total of 13 countries, including the US, Australia, Japan, France and Germany, and more than 30,000 personnel.
Ospreys are tilt-rotor aircraft that combine the features of both helicopters and turboprop planes, according to the US Air Force.
It has two swivelling engines positioned on fixed wingtips that allow it to land and take off vertically, but also move at faster speeds than a conventional helicopter.
The Osprey aircraft’s safety record has repeatedly come into question after a series of fatal incidents.
In June last year, all five Marines on board an Osprey were killed when it crashed in the California desert near the Arizona border.
In March of that year, four Marines were killed when an Osprey crashed near a Norwegian town in the Arctic Circle during a NATO exercise.
In 2017, three Marines were killed when an Osprey crashed after clipping the back of a transport ship while trying to land at sea off Australia’s north coast.
