BREAKING: BRUCE HWY CLOSED BOTH WAYS AFTER FATAL CRASH SOUTH OF MARYBOROUGH.

FOUR cars caught fire after a crash on the Bruce Hwy on the Fraser Coast, a Queensland Police Service spokesman has said.

The Bruce Highway is blocked in both directions following a fatal traffic crash south of Maryborough.

Police and emergency services were called to the scene approximately 6 kilometres north of Tiaro at 3:15pm following reports of a multi-vehicle crash involving at least 4 vehicles.

The Bruce Highway is currently closed in both directions and is expected to be for some time. Police are urging motorists to avoid the area or delay travel if possible.

Diversions are in place via Mungar Road or Maryborough-Cooloola Road.

The horror smash resulted in fatalities. It is unclear at this stage at the number of fatalities.