A massive fire which ripped through Summercourt's Western Greyhound depot yesterday morning may have been started deliberately, police have said.
Devon and Cornwall Police say following investigations, it is now thought the fire, which destroyed a third of the company's fleet worth around £1.5million, was started deliberately.
Anyone with information is asked to contact police quoting crime reference GC/13/151.
Western Greyhound said the following services were not running - 522, 547, 550, 551, 556, 557, 558, 559, 585, 586, 596
The following services are running with a reduced service - 524, 525, 594
The company said that unless stated, all other services were running as normal.
More than 35 buses were destroyed by fire in a massive blaze near Newquay overnight.
Firefighters were called at just after 1am to deal with the inferno at the Western Greyhound bus depot at Summercourt.
There is expected to be massive disruption to school and general bus services this morning after 37 buses were destroyed.
Fire crews from nine centres attended the blaze near the A30 with flames visible for miles in the early hours.
Mark Howarth, managing director of Western Greyhound, said the fire was "devastating".
He said: "We know 37 buses out of 100 have been burned out. It's obviously devastating."
Mr Howarth was called just after 1am this morning and went straight to the scene.
A spokesman for Devon and Cornwall Police said: "A large number of buses have been destroyed by fire which will impact on the bus service provided in mid-Cornwall."
Police said nobody was injured in the blaze.
The A3058 Newquay to St Austell Road has now been re-opened.
The Highways Agency have put diversions in place.
Cornwall Council said the park-and-ride in Truro would be affected but would still run a limited service this morning.
The cause of the fire has not yet been established and investigations by Cornwall Fire and Rescue Service and Devon and Cornwall Police will continue.