A significant fire remains ongoing at BAE Systems' BAES.L shipyard in Barrow-in-Furness, northwest England, that builds Britain's new generation of nuclear submarines, but there was no nuclear risk from the incident, police said on Wednesday.
UK's Cumbria police said in a statement that two people had been taken to a hospital after suffering from suspected smoke inhalation and that there were no other casualties.
The police said that everyone else had been evacuated from the Devonshire Dock Hall facility and accounted for.
BAE's site in Barrow-in-Furness, Cumbria, manufactures Royal Navy's Astute and Dreadnought submarines, according to BAE's website.
Police advises nearby residents to stay indoors
The incident was reported at 12:44 am local time, police said.
BAE did not immediately respond to a Reuters request for comment.
Police have advised residents nearby to remain indoors.