Police are investigating a suspicious fire in Zeehan overnight.

Tasmania Fire Service attended a fire at West Coast Realty at 133 Main Street, Zeehan just after 10pm last night. The building was destroyed as a result of the fire. Two adjoining buildings (a rock shop and a pharmacy) were also damaged by fire.

No one was injured during the incident and the value of the damage is unknown at this stage.

The cause of the fire is not yet known. Investigations are continuing.

Anyone with information is asked to contact Tasmania Police on 131444 or information can be provided anonymously by calling Crime Stoppers on 1800 333 000 or online at crimestropperstas.com.au