Three of the six victims killed when a bin lorry careered out of control through Glasgow were an elderly couple and their granddaughter.

Jack Sweeney, his wife Lorraine and Erin McQuade - understood to be in aged her teens - died on Monday after the council vehicle drove through a street full of Christmas shoppers.

Mr Sweeney, from Dumbarton, was a former president of Bramalea Celtic supporters club in Canada.

A statement posted on the Bramalea CeItic supporters club Facebook page said: "It is with great shock and sadness we share with you our friend and past president Jack Sweeney, his wife Lorraine and granddaughter Erin were victims of today's tragedy in Glasgow."

"Our thoughts and prayers go to the family and friends of the Sweeney family."

People were standing outside the Gallery of Modern Art | Image: Google Earth

Relative John Sweeney described himself as "feeling heartbroken" on Facebook.

He wrote: "No words can describe the pain. R.I.P. Jack, Lorraine and Erin. Thoughts and prayers go out to the other families that lost loved ones as well."

Three other females were also killed and 10 people were injured, six of whom remain in hospitals around the city.

A special prayer service has been held for the victims at the St George's Tron Parish Church which is near the scene of the crash on George Square.

Reverend Alastair Duncan, minister of St George's Tron Church of Scotland, led prayers for the victims and all those affected.

He said Glasgow had been left "in sorrow and shock" and "in a place of brokenness and grief" as a result of the "pain and devastation that has come to families in this city."

He said the accident had "affected the lives of ordinary people as they went about their business in excited anticipation of Christmas."

A large cordon remains in place near the scene of the crash and dozens of floral tributes have been placed at the scene, including by Scotland's First Minister Nicola Sturgeon and Glasgow City Council leader Gordon Matheson.