A fireball erupts as a truck explodes near Southampton's West Quay Shopping Centre
The blast came after the vehicle caught fire outside a car park
Sirens played in the shopping centre as people were evacuated
Fire crews have brought the fire under control
Fireball explodes from truck outside shopping centre
This ends the BBC South live coverage of the truck explosion outside West Quay Shopping Centre.
Thank you for following along as we brought you the latest updates, for the highlights you can visit our story about the incident.
A spokesperson for Hampshire and Isle of Wight Constabulary has confirmed the Harbour Parade has now reopened and police are no longer at the scene.
Our reporters outside West Quay have also confirmed firefighters are no longer there as the blaze has been extinguished.
The truck fire was accidental, firefighters have confirmed.
In their latest update, Hampshire and Isle of Wight Fire and Rescue Service say the scene has now been handed over to police.
In a statement, the service explained the vehicle contained "cylinders that exploded".
It added: "The fire completely destroyed the vehicle and caused heat and smoke damage to the entrance of the West Quay car park.
"Ventilation fans were deployed to clear the remaining smoke. We would like to thank everyone for their patience and cooperation during this incident."
Acculine, a company which specialises in painting line markings on roads, has confirmed the truck belongs to them
The BBC understands the workmen were not in the vehicle at the time of this morning's fire and subsequent explosion.
It is believed they were painting road markings nearby when the incident happened.
The company they work for, Acculine, previously told us it was unsure of the cause, but were considering an issue with a gas canister.
Sheikh Emad Uddin Billal captured the moment the fireball erupted
Quote MessageWe can confirm that an incident occurred near the Podium car park entrance at Westquay this morning. Fire services were quickly in attendance, and this is now a matter for the authorities, and we are supporting them with their enquiries. The safety and security of our shoppers and colleagues is always our top priority.
Westquay, Spokesperson
Hampshire and Isle of Wight Fire and Rescue Service has posted an update explaining the fire is now out.
A statement said: "There remains smoke in the area and crews are currently working to clear this.
"We expect to have a presence on site for some time until the incident is fully resolved.
"The road closure remains in place. We thank everyone for their patience while we deal with this matter."
Patrick Hughes
BBC News
The company that owns the truck raised the possibility of an issue with a gas canister
Acculine, a company which specialises in painting line markings on roads, has confirmed the truck which exploded belongs to them.
A spokesperson said the driver is "okay" after police confirmed no injuries had been reported.
The firm said it was unsure of the cause of the explosion but raised the possibility of an issue with a gas canister.
Delivery rider Sheikh Emad Uddin Billal was on his way along Harbour Parade to pick up an order when he came across the unfolding incident.
"I noticed a car (sic) on fire with a crowd of people watching. Then I stopped my moped and made a video.
"Suddenly the explosion happened – nobody knew it was going to happen.
"It was scary. As I made the video, one guy went to the van and everyone shouted for him to come back. He came back and at that time the explosion happened."
Hampshire and Isle of Wight Fire and Rescue Service are asking members of the public to stay away from the scene.
A spokesperson said: "Crews from St Mary’s, Redbridge and Hightown are currently in attendance at a vehicle fire following reports of smoke and flames at the back of Westquay, Southampton at just after 09:30 GMT this morning.
"People are asked to avoid the area while emergency services deal with the incident. Harbour Parade is closed in both directions."
Image source, BBC/Open StreetThe incident happened outside one of the entrances to the Podium car park underneath the West Quay Shopping Centre on Harbour Parade.
Sophie Cridland
BBC News, Southampton
A number of emergency services vehicles – ambulance, police and fire - are here.
It looks like a working truck has caught fire.
Firefighters are putting the fire out with hoses at the moment. The vehicle looks like it has been completely burnt, parts are black, there is no top any more - you can just see the inside.
I can hear the fire alarm from inside West Quay - the whole of the shopping centre has been evacuated.
It looks like hundreds of people have been evacuated from the shopping centre and are just waiting to see what happens next.
Police have told us a vehicle fire on Harbour Parade, Southampton, was reported at 09:37 GMT.A statement said the fire service was leading on the incident and officers were assisting with road closures.
This is the moment a delivery driver captured a fireball exploding from a truck outside West Quay Shopping Centre.
Sheikh Emad Uddin Billal sent the BBC this footage, which shows a number of explosions coming from the vehicle.
Fireball explodes from van outside West Quay
BBC cameraman Marcus Gaines is at the scene and said there was "jet-black smoke" shortly after a "pounding explosion".
He explained: "A thick plume of acrid smoke billowed up into the blue sky. You could tell immediately this wasn’t good.
"The sound of sirens echoed around and within five minutes the smoke had passed."
Shoppers at West Quay have been evacuated following the explosion outside one of the centre's car parks earlier.
We've been told a siren has been playing inside the building advising people to leave.
Firefighters are currently at the scene outside the West Quay centre
An explosion has been heard in Southampton after a truck caught fire.
BBC reporters are on the scene in Harbour Parade outside West Quay.
Firefighters can be seen hosing down the truck, which is scorched.