Two people have been seriously injured after an explosion in Oak Flats overnight.
Just before 7pm, emergency services responded to reports of an explosion at the rear of a property on Forrest Street.
NSW Ambulance paramedics attended and treated two people, a 46-year-old woman and a 47-year-old man, suffering serious burns.
Both were airlifted to Royal North Shore Hospital and remain in a serious but stable condition.
NSW Fire and Rescue attended and examined the scene, before declaring it safe. It's believed the explosion may have been caused by a gas bottle.
Some neighbouring homes suffered damage to tiles and windows.
Officers attached to Lake Illawarra Police District established a crime scene, which will be examined by specialists
Detectives are investigating the circumstances surrounding the incident.