An arson attack which saw nine cars set alight at a Northam mechanic business has caused more than $100,000 worth of damage.
Emergency services were called to Avon Service Specialists at about 9pm on Wednesday night following reports a number of cars had been set on fire.
Avon Service Specialists owner Cameron Blackhurst said he was alerted about the incident by next door business Speciale Smash Repairs.
In total nine cars were set alight and the incident has caused more than $100,000 worth of damage.
Arson Squad officers will visit the business this morning to continue their investigation into the attack.
Anyone with information is asked to call Crime Stoppers on 1800 333 000.