Two people have been taken to hospital after a fire broke out at BAE Systems’ Barrow-in-Furness shipyard in Cumbria, police said.
Cumbria Constabulary said the fire at the nuclear submarine shipyard broke out at about 12.30am and was ongoing.
Police said there is “no nuclear risk”, but two people were taken to hospital for suspected smoke inhalation.
A statement said: “At this time there are no other casualties and everyone else have been evacuated from the Devonshire Dock Hall and are accounted for.”
The force advised people living nearby to “remain indoors whilst emergency services respond to the incident and keep doors and windows closed”.