Helicopter crashes into roof of pub
A helicopter has crashed into the roof of a Glasgow pub.
Labour's international development spokesman Jim Murphy tweeted: "Terrible here in Glasgow Helicopter crashed into roof of pub"
The bar was the Clutha bar, on the banks of the Clyde.
Mr Murphy told the BBC: "It's a well established Glasgow pub. It's a horrible horrible scene, but well done to the folk who were here. Everyone formed a chain of people from inside the pub to outside, and the fire brigade and everyone were here very quickly."
The Scottish Fire and Rescue Service said they were on their way to a "building explosion" in Glasgow's Clyde Street.
A spokeswoman for Strathclyde Fire and Rescue Service said: "I can confirm that we have people at the scene.
"It is obviously a major incident. There are numerous fire engines there; 15 fire engines at the moment along with specialist services.
"I cannot confirm if there have been any injuries."
Gordon Smart, editor of the Sun's Scottish edition, told Sky News: "I was in a car park and looked up and saw a helicopter which I think was a police helicopter.
"It was just such a surreal moment. It looked like it was dropping from a great height at a great speed. I'm about 80% sure that it was a police helicopter.
"There was no fire ball and I did not hear an explosion. It fell like a stone. The engine seemed to be spluttering."
Mr Murphy told BBC News: "I got out of my car and just tried to help people.
"I saw a pile of people clammering out of the pub in the dust. No smoke, no fire, just a huge amount of dust."
Deputy First Minister of Scotland Nicola Sturgeon tweeted: "Absolutely awful news about a helicopter crashing into the Clutha. All my thoughts are with everyone involved & the emergency services".
Claire Morris, who lives near the Clutha bar, told BBC News: "We heard this bang. We didn't really know what had happened and then we heard people coming out and screaming.
"I wasn't sure whether there had been an explosion. My daughter said to me it was a helicopter that had hit the roof.
"Police are everywhere. We are just very shaken."
She added the pub was very popular and would have been busy on a Friday night.
"It was just a bang, my daughter said it was like a firework explosion, something like that. There doesn't appear to be a fire."
Ms Morris added she thought a police helicopter was involved in the crash.
One image of the crash on social media sites showed the dark blue helicopter on the roof with yellow "POLICE" insignia on part of the wreckage.
Mr Murphy told Sky News people formed a human chain to help pass unconscious people out of the pub so that "inch by inch, we could get the people out".
He said: "I think the building's only about 18ft, 20ft, tall so part of the helicopter is sticking out, but most of the helicopter is in the building."
The Police Roll of Honour Trust tweeted "Our thoughts are with the crew of @policescotland SP99 helicopter that has crashed in Glasgow - hoping everyone is alright."
Prime Minister David Cameron tweeted: "My thoughts are with everyone affected by the helicopter crash in Glasgow - and the emergency services working tonight."
First Minister Alex Salmond tweeted: "The emergency services are in full operation. Our thoughts are with everyone involved. Scottish resilience operation now mobilised."
According to their Facebook page, nine-piece Glasgow ska band Esperanza were playing at the venue tonight.