Fire has damaged a number of buildings at Sylvania early this morning.
Just before 1am emergency services were called to Princes Highway, Sylvania, following reports a business was alight.
The blaze at Sylvania Fruit World was extinguished a short time later by NSW Fire & Rescue.
Most of the damage to the building was external.
No one was injured.
Officers attached to Sutherland Local Area Command established a crime scene and have started an investigation.
Police are treating the fire as suspicious.
Anyone with information is urged to come forward and contact Sutherland Police Station via Crime Stoppers on 1800 333 000.