London: Flags were flown at half mast above Scottish government buildings on Tuesday to remember six people killed when an out-of-control lorry ploughed into Christmas shoppers in Glasgow.
Another 10 people were injured, including the driver, after the refuse truck swept along a crowded pavement in the city centre on Monday afternoon, knocking pedestrians down "like pinballs", according to one horrified eyewitness.
The Church of Scotland organised a prayer service for the victims on Tuesday morning and opened a book of condolences at St George`s Tron church, a short walk from the scene of the tragedy on George Square.
Floral tributes were placed at the scene of the crash, which police said appeared to have been a tragic accident. The dead included five women and one man, police said.
The city returned to mourning just over a year after a police helicopter crashed into a Glasgow bar on November 29, 2013, killing eight people and injuring more than 30 others.
First Minister Nicola Sturgeon described Monday`s incident as "another sad day for Glasgow and Scotland".
"This morning it`s a city with a broken heart but it will get through this as it got through the Clutha (helicopter) tragedy," she told BBC radio.
The local authority bin lorry veered over a distance of around 300 metres (about 1,000 feet), only stopping when it crashed into a hotel near Queen Street station.
The driver survived and was taken to hospital. Eyewitness reports suggested he was slumped at wheel, raising speculation that he may have had a heart attack.
An investigation was under way to establish exactly what had happened, police said.