Overview

• Arson and Explosives Squad detectives arrested the woman in Tarneit on Tuesday.
• Police charged her with two counts of negligent manslaughter and one count of negligently causing serious injury.
• She is scheduled to appear at Melbourne Magistrates' Court on Wednesday, September 17.
• Emergency crews found siblings Izabel, 5, Kalais, 3, and Lyvia, 21 months, unconscious; Izabel and Lyvia died days later and Kalais survived after 10 days in hospital.
• Investigators previously said they believe the fire started at the rear of the home, and they continue to seek public information via Crime Stoppers.