A fire at an automatic teller machine in the Perth suburb of High Wycombe is being treated as suspicious.

Firefighters were called to the ATM which is attached to a delicatessen, on Newburn Road, just after 2:30 am.

Police say the front of the machine had been ripped off.

Damage to the premises has been estimated at $200,000.

The blaze is being investigated by the Arson Squad.