LONDON, England (CNN) -- An industrial vacuum cleaner left switched on inside the historic Cutty Sark ship was the most likely cause of the fire last year that gutted the 19th-century tea clipper, police said Tuesday.
The blaze gutted the historic vessel, causing millions of dollars' worth of damage.
The vacuum cleaner was being used to remove waste from the vessel as it underwent an extensive three-year $50-million restoration project. Police said their investigation showed the vacuum had inadvertently been left running for 48 hours before the fire broke out.
In their report, issued Tuesday, police said the fire started accidentally and there was no evidence the fire wa