Northern Territory police attended the scenes of two fatal crashes overnight.

At about 8.50pm police received a report of a single vehicle rollover on Fog Bay Road near Dundee.

A 20 year-male died at the scene.

Around 9.20pm police received a report of a collision between a motorcycle and a vehicle on McMillans Road at Jingili.

A 26 year-old male died at the scene.

Major Crash Unit is overseeing the investigations of both crashes.

Senior Sergeant Corey Borton said “These are two tragic incidents. Anyone who may have witnessed the incidents is urged to contact police on 131 444.”