Eyewitnesses have described the "terrifying" moment when a police helicopter spun out of control and plunged into a bar which was hosting a live music gig.
Grace MacLean was in The Clutha in Stockwell Street, Glasgow, and said people became aware of the crash only when the ceiling of the venue started to cave in.
She told Sky News: "There was a band on, they were quite loud, and we just kinda heard a whoosh and some smoke.
"We looked around and no-one really knew what was going on. Everyone just carried on listening to the band.
Emergency services at the scene "And then we kind of looked again and the roof was gradually coming down.
"Someone started shouting and the band cut the music ... and then all of a sudden this cloud of dust came.
"You couldn't breathe for inhaling a mouthful of dust. You couldn't see anything. You were clawing at the walls to see where the exit is.
"No-one had a clue what was going on. There was no loud noise.
"People were helping each other out. Everyone started helping people who were hurt. People had some head injuries. Lots of people were covered in dust. There were lots of people shocked.
"No-one knew it was a helicopter crash until people told you."
Labour's international development spokesman Jim Murphy happened to be driving past the pub immediately after the crash.
Firefighters on the roof of the pub where the helicopter crash-landed "I jumped out and tried to help," he said. "There were people with injuries. Bad gashes to the head. Some were unconscious."
He described how a human chain formed to help pass unconscious casualties out of the pub so that "inch by inch, we could get the people out".
Scores of passers-by in the area ran to the venue after seeing or hearing the aircraft go down.
Connor Gillies, from Radio Clyde News, told Sky News of the "scenes of chaos" and "continuous stream of sirens" in the area on Friday evening.
Mr Gillies described seeing "blood on the shirt" of Mr Murphy, who he said was "clearly very shaken, very upset by the whole thing".
Wesley Shearer, who posted pictures on Twitter of the scene, said: "This is unbelievable. Just spent 20 minutes pulling people out of the bar."
Jan Hollands, who also tweeted pictures from the scene, said she heard the crash and described it as "scary".
MP Jim Murphy helped people out of the venue At 7am, one worried man was waiting at a police barrier hoping to hear of news about his father, who was in the pub on Friday night.
"My dad was sitting there with his lady friend. She went to the toilet and boom, it came straight through the roof … right on top of the spot where they were sitting.
He added: "That was the last I heard. I'm going to stay here … It cannot get much worse."
:: Police have issued an emergency telephone number for concerned relatives - 0800 092 0410.
A tent is erected over the wreckage of the helicopter
Firefighters on the roof of the pub
Two police officers and one civilian pilot were on board the helicopter
Those inside the pub gather outside after the crash Pic: Paul Agnew
The Clutha is situated in Stockwell Street in Glasgow
Two girls escaped on Tuesday, the third was found by police. Pic: KOLD TV
Persimmon was among the stocks hit following the bank's announcement
The Boeing 777 was forced to make an emergency landing at Stansted Airport
The introduction of the "bedroom tax" has proved controversial
Charities have written to Iain Duncan Smith about the bedroom tax
Council tenants judged to have extra bedrooms now receive less benefit
Ms Harnum was planning to leave Gittany
Gittany with his new girlfriend, Rachelle Louise, who screamed at the judge
Gittany and Ms Harnum's apartment was in central Sydney
Nick Clegg has welcomed the 'sensible and reasonable' tougher rules
Independence supporters say it will be fairer to 'divorce' the UK
Pro-independence supporters march through Edinburgh in September
The Labour leader has also heavily criticised the industry
The payday loan industry is worth £2bn
Critics claim affordability checks are not being properly carried out
Payday loan bosses defended their business in front of MPs
Rajesh Talwar was attacked outside court in 2011
Kamal Francis described the women as having unkempt appearances
The women lived in the Angell Town estate in Brixton
The Tories have attacked Labour's links with the Co-op Bank
Mr Shapps accused Mr Miliband of 'evading serious issues'
William Hague hailed the agreement as 'very important and encouraging'
US Secretary of State John Kerry and Iran's Mohammed Javad Zarif
European Union policy chief Baroness Catherine Ashton and Javad Zarif