Investigations are continuing today into a fire at the Riverside Leisure Centre in Exeter - which was attended by more than a hundred firefighters.
This is what's left of the health suite after the fire broke out at around 4pm yesterday.
The fire quickly spread through the roof space. The fire brigade punched holes in the roof and filled the space with gas to stop the flames from spreading.
No one was seriously hurt, but one person had to be treated for the effects of breathing in smoke, and another had minor burns.
Nearby residents were evacuated during the blaze, but the fire service says it could have been a lot worse: