More than 25 firefighters responded to an incident in Albanvale just after 5:15pm on Monday, following reports of a house fire.
Firefighters arrived on scene within five minutes to find a single storey house fully involved in the blaze.
Wearing breathing apparatus, crews conducted a search of the house to ensure no one was trapped inside.
Firefighters then began to attack the fire and prevent it from spreading to a neighbouring property. The fire was brought under control at 5:50pm, 30 minutes after first crews arrived at the scene.
Three patients were treated by Ambulance Victoria paramedics and transported to hospital.
At this stage the fire is being treated as suspicious, and the incident has been handed over to Victoria Police to investigate.
Reviewed 14 March 2022