Police are investigating a suspicious house fire in West Tamworth last night.

About 10.30pm (Tuesday 31 March 2015), emergency services were called to Ridge Street.

Officers from Fire & Rescue NSW extinguished the fire, which is believed to have started inside the house.

No persons have been reported injured due to the fire.

Police from Oxley Local Area Command attended and established a crime scene with specialist police investigators due to examine the premises once it has been deemed safe to do so.

Detectives have begun investigations into the fire, which is being treated as suspicious.

They are appealing for anyone with information about the incident to contact Tamworth Police on (02) 6768 2999 or Crime Stoppers.