A devastating fire engulfed a house in Kristiansund on Monday evening, leaving two residents unaccounted for.

Emergency services responded swiftly, but the flames quickly consumed the house and an adjacent outbuilding.

One of the three registered residents managed to escape and is being cared for by health services.

The other two remain missing, and their families have been informed.

Authorities have begun an investigation into the cause of the fire, but the site remains too hot for thorough examination.

Firefighters have since brought the blaze under control, but the community is left in shock as they await further updates.