Four US marines killed in Arctic Circle aircraft crash

The Osprey aircraft crashed in northern Norway (Patrick Semansky/AP)

Four US marines were killed when their Osprey aircraft crashed in a Norwegian town in the Arctic Circle during a Nato exercise unrelated to the Ukraine war, authorities said.

Norwegian Prime Minister Jonas Gahr Stoere tweeted that they died in the crash on Friday night. The cause was under investigation but Norwegian police reported bad weather in the area.