Image: @ShannonMM9, 9 News QLD
Update 4:30pm: The M1 at Loganholme is expected to be open in both directions in time for the commute home, after a tanker filled with hydrochloric acid exploded in the southbound lanes.
The northbound lanes opened up early in the afternoon of Friday, with one of the southbound lanes still ruined by the blaze.
Tolls on the Logan Motorway from the M1 to the Gateway merge were waived until 6pm to help ease congestion.
Update 9:30am: Police have declared an emergency situation in Loganholme, after a truck containing sulfuric acid burst into flames on the Pacific Motorway at 8:40 this morning.
The incident occurred in the southbound lanes near the Logan Hyperdome, but the motorway was shut both directions while fire fighters tackled the blaze.
A Public Safety Preservation Act was issued at 9:20, with a one kilometre exclusion zone set up around the crash site.
People in the immediate vicinity were asked to stay indoors and anyone with breathing problems should have their medication or breathing aids with them.
The driver of the truck managed to get himself out of the cab without injury.
Image: 7 News
A truck carrying a volatile substance is on fire on the M1 at Loganholme.
It is in the southbound lanes near the Logan Hyperdome.
Those lanes are currently closed with traffic being diverted off the highway at Bryant Rd, while nearby businesses are being evacuated.
Expect delays northbound too, as emergency vehicles make their way to the scene.