Crushed cars may have sparked the blaze which engulfed the CTV building after its February 22 collapse, a hearing has been told today.
A rescue worker and trained structural engineer, who arrived at the disaster site 30 hours after the collapse, believes the fire may have started in cars in the ground floor car park.
Urban Search and Rescue (USAR) support engineer Graham Frost told the royal commission hearing this morning that six cars removed from the building during the recovery stage in the immediate disaster's aftermath were all burnt out.
"I think it's possible the fire started in these vehicles,'' he said this morning.
He believed the cars would have provided the fire with a fuel sourced for "some time''.