Police are investigating a deliberately lit fire in Ravenswood overnight.

Shortly after midnight, multiple crews from Tasmania Fire Service and Tasmania Police attended a fire at the Ravenswood Over 50 Club on Lambert Street.

The fire was quickly extinguished, and only minor damage was caused. There were no occupants in the building at the time.

The fire was determined to be deliberately lit and investigations are continuing.

Anyone with information that may assist should contact Tasmania Police on 131 444.

Information can also be provided anonymously by calling Crime Stoppers on 1800 333 000 or online at crimestopperstas.com.au