Six people are still in hospital after a 21-year-old man set himself alight at a Commonwealth Bank in Springvale in Melbourne on Friday.
One of those was in a critical condition and another was critical but stable on Saturday morning.
Another was the alleged arsonist under police guard.
Twenty-seven people were injured in the attack, among them were children.
The 21-year-old man brought a container of flammable accelerant and started a fire at 11.30am on Friday.
Black smoke and flames quickly took hold, trapping customers and staff inside before brave passers-by helped them out of the bank through a rear fire exit.
Police have said the motive of the man is still yet to be determined.
With AAP
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