A fire broke out in an apartment in a five-story building on Røa, Oslo, on Friday evening, leaving one person critically injured.

Emergency responders quickly extinguished the fire, which was contained to a single unit, thanks to the building's sprinkler system.

Another resident suffered from smoke inhalation.

All 17 residents evacuated safely, with most allowed to return home later that evening, except for one apartment affected by water damage.

The cause of the fire, which reportedly started in a bedroom, remains under investigation.