A fiery crash involving four trucks is causing major delays on the M1 Pacific Motorway at Halloran on the Central Coast.
Newcastle Fire Command says a B-Double carrying Woolworths goods was travelling through the roadworks zone heading north just past the Sparks Road overpass at about 2.10am on Wednesday when it crashed into three work trucks that were stopped at the location.
The B-double caught alight with the fire quickly spreading to the other heavy vehicles involved in the crash.
Thankfully no-one has been injured.
The crash closed both sides of the M1 but the southbound lanes re-opened to traffic just after 4am, although there is a traffic queue of 5 kilometres.
Northbound lanes remain closed with diversions in place as firefighting operations continue.
