Twenty-six people were hurt Friday, some critically, after a man set fire to a busy bank in Australia with one witness saying he heard a big blast and children screaming, the Police said adding that the man entered the Commonwealth Bank branch in the Melbourne suburb of Springvale with flammable liquid.

The motive was not clear and Poida said it was too early to tell if it was terror related. Paramedics said six of those injured were in a critical condition. One is believed to be the suspect, who is under police guard in hospital.