It was spotted on the A90 towards the Forth Road Bridge.
Six Dead In Glasgow Bin Lorry Crash
Six people have died and eight others have been hurt after an out-of-control bin lorry crashed into shoppers in Glasgow's city centre.
Witnesses described bodies lying in the road after the crash in Glasgow city centre, which is being treated by authorities as a major incident.
The lorry travelled from the Gallery of Modern Art before it crashed near the side entrance of the Millennium Hotel next to Queen Street station.
The cause of the crash was not immediately clear but there were unconfirmed reports that the driver, who survived, may have suffered a heart attack.
Police confirmed he was one of those taken to hospital.
Witness Melanie Greg said the lorry travelled 150 yards along the pavement before crashing in George Square.
She told Sky News: "The bin lorry just lost control. It went along the pavement, knocking everyone like pinballs.
"There was a baby in a buggy, and it just continued knocking people down until it ended up in the building. Quite horrific, very scary.
"The only way it stopped was hitting the building.
"People were trying to run out of the way. But when something was coming out behind them like that, how can they run out of the way?"
She added: "There was noise, bangs, screams and everything. It was just horrific."
Superintendent Stewart Carle said the lorry hit several pedestrians.
He said: "It's difficult for all the emergency services but particularly for those people who have been in Glasgow today shopping and getting ready for Christmas.
"There will be a lot of distressed people and certainly the city will need to come round those people that have been traumatised by the incident."
Supt Carle said: "About 2.30pm a Glasgow City Council bin lorry was travelling north on Queen Street outside the Gallery of Modern Art when it was in a collision with a pedestrian.
"The bin lorry then has continued north on Queen Street, it would appear to have gone up on the footway and there have been a number of other pedestrians it has collided with."
Scotland's First Minister Nicola Sturgeon said: "My thoughts are with everyone involved in this tragic incident, and especially with the friends and families of the six people who lost their lives in what is another sad day for Glasgow and Scotland.
"I am currently at the Police Scotland control room in Govan with Justice Secretary Michael Matheson, where I am being fully briefed with the latest information.
"As ever, Scotland's emergency services have responded in a swift and professional manner and I would encourage everyone to let them get on with their vitally important roles.
"Police Scotland has set up a helpline for anyone who believes a friend or relative may have been involved. The number is 01786 289 070.
"To take the strain off the phone line, I would urge anyone who was in Glasgow city centre today to contact their friends and family and let them know they are safe."
Police Scotland Assistant Chief Constable Wayne Mawson, local policing commander for the west, said: "Investigations continue into the circumstances of the tragic incident in George Square today.
"While those investigations are continuing, we can confirm that this is not a terrorism-related incident."
The injured were taken to the three main hospitals in the city: Glasgow Royal Infirmary, the Southern General and the Western Infirmary.
Police are appealing to members of the public who have photographs, videos or any type of mobile footage of the incident to send it to the dedicated email address which is: firstname.lastname@example.org.
In Pictures: Bin Lorry Crash
Here are some of the pictures our reporters have taken at the scene of the bin lorry tragedy in Glasgow's City Centre.
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