Police have launched an investigation into a unit fire that left four people suffering from smoke inhalation yesterday.
About 8.30pm on Sunday night, emergency services were called to a unit block on Park Avenue, Kingswood following reports of a fire in a top floor unit.
Residents of the 12 units in the block were evacuated and the fire, which spread to a second neighbouring unit, was extinguished by Fire and Rescue NSW after a lengthy operation.
Four people, two men and two women, were taken to Nepean Hospital suffering from smoke inhalation.
The two top-floor units were destroyed by the fire.
Officers from Nepean Police Area Command established a crime scene, which will be examined by specialist forensic officers.