Norway has evacuated all 137 crew from one of its warships after it collided in a fjord with a Maltese oil tanker.

Axar.az reports citing eight people were lightly injured in the collision in the Hjeltefjord near Bergen. The KNM Helge Ingstad frigate has been listing dangerously.

The warship had been returning from Nato military exercises. The tanker, the Sola TS, was slightly damaged and it appears that it did not spill oil.

The incident led to the shutdown of a major oil terminal and a gas plant.

The two vessels collided at about 04:00 local time (03:00 GMT) as the frigate was sailing inner fjords for training, officials say.

The tanker had already left Equinor's Sture oil terminal with a cargo of North Sea crude, Reuters news agency reports.