U.S. military plane crashes with four on board in Norway, Norwegian government says

The Norwegian military said Friday that a U.S. military aircraft with four people on board crashed in the northern part of the country. The V-22 Osprey aircraft went down in bad weather in an area with rough terrain and narrow valleys, according to the Norwegian military. 

The Marines confirmed "an incident has occurred involving a Marine Corps MV-22B Osprey aircraft," and that an investigation is underway.

The fate of the people on board is not known.