The M62 has been closed in both directions at Rochdale after a crane went up in flames.
All lanes are closed on the westbound side heading towards Manchester and closures were also in place on the eastbound side heading to Huddersfield as the incident is dealt with.
People reported hearing huge explosions at the same time that reports of the motorway fire came in.
Greater Manchester Fire and Rescue said they have four pumps on the scene.
The motorway reopened westbound at about 4am - eight hours after the closure
Stunning image of fire being put out
Westbound remains closed
Highways Agency have just said westbound remains closed
Video of aftermath of fire
Close up image of the fire
Stuck for more than two hours
Many motorists have been trapped on the M62 for more than two hours
Traffic still being diverted off at junction 21
Just heard traffic is still being diverted off the motorway
Hope for motorists
Pic shows traffic slowly starting to move
Cars moving eastbound too
Just heard from a motorist trapped heading to Huddersfield that cars are now moving slowly eastbound
Traffic being released on westbound side
Water handed out
More thanks to the men with the water
Hear the explosions
This has just come in of some of the explosions and you can see the fire breaking out
Highways Agency have said there are long delays caused by the closures
Witness heard and felt the bangs
One motorist who has been trapped on the M62 since 8:45pm said they heard and felt the explosions as they were driving.
He said they were really deep booming sounds and they felt the vibrations.
He said they haven’t moved but lots of people have been offering water to motorists to make sure they are ok.
The motorist said he felt they would be delayed for at least another hour.
Debris landed on eastbound carriageway
The explosion has happened on the westbound carriageway with debris flying across the motorway onto the other side
Reports of fuel spilling on the motorway
There are reports of lots of fuel spilling on the carriageway and eight explosions being heard
Blaze from a distance
Witnesses on the carriageway
Pic shows witnesses out of their car on the carriageway after explosions
Water being handed out to motorists
More video of the fire
Warning to drivers
Fire crews have warned drivers not to turn around on the carriageway unless instructed to do so
Driver reportedly got out safe
One eyewitness said he spoke to a police officer who said the driver got out.
Explosions were tyres
The statement says that the explosions were the tyres on the mobile crane
Fire service statement in full
At 8.36pm on September 24, four fire engines from Heywood, Rochdale and Chadderton were mobilised to a fire involving a mobile crane on the M62 westbound carriageway between J21 Milnrow and J20 Rochdale.
The vehicle was well alight on arrival of crew and the heat had caused the vehicles tyres to explode which could be heard across parts of Rochdale and Oldham.
Firefighters wearing breathing apparatus are tackling the fire with two hose reels while a specialist hazardous materials officer has been mobilised to the scene as the vehicle has leaked some diesel onto the carriageway.
Colleagues from Greater Manchester Police and the Highways Agency have closed both carriageways causing queues as expected.
Closures at junction 20
The M62 has been closed at junction 20 at Rochdale - traffic is building in both directions
Video of fire on M62
Four pumps at the scene
Greater Manchester Fire and Rescue Service said four pumps are at the scene