FIRE gutted a hairdressing salon in the northern suburbs overnight.
Firefighters were called to the suspicious blaze at the Michael Street business in Yokine after 3am.
Twelve firefighters prevented it from extending into other shops.
Neighbouring shopkeepers arrived later this morning to check their premises.
The blaze caused $80,000 damage.
Arson Squad detectives will investigate how it started.
Call Crime Stoppers on 1800 333 000.