Police are investigating a suspicious house fire at Mowbray yesterday.

Tasmania Fire Service and Tasmania Police Service attended a house fire on Vermont Road, Mowbray, about 1:00pm.

The unoccupied residence sustained non-structural damage to the interior. Damage is estimated to be around $50,000.

Tasmania Fire Service Investigators have determined the fire to have been deliberately lit and police are now investigating.

Suspects are described as being two men aged in their late teens – one with blonde hair, wearing a black cap and carrying a back pack, the other having red hair.

Anyone who has information which may help identify the suspects is asked to contact Launceston Crime Investigation Branch on 6777 3915 or anonymously by calling Crime Stoppers on 1800 333 000 or online at crimestopperstas.com.au