Gardaí enquiries are continuing following a fire at a tyre centre in Bridgend last week.
Two cars were set on fire outside the premises at 11.30pm on Wednesday 12th August.
Fire services and gardaí attended the scene and the fire was brought under control.
Gardaí now say that it appears that an accelerant was used.
An appeal is underway for witnesses or anyone with any information to contact gardaí at Letterkenny Garda Station on 074 9167100 or the Garda Confidential Line on 1800 666 111.