ShareSaveShareSaveGetty ImagesWorkers began dismantling the chimney on Friday morningDemolition work has begun at a fire-ravaged building in Glasgow city centre.
The historic Union Corner, at the junction of Union Street and Gordon Street, was destroyed in the inferno on Sunday night after flames took hold in a vape shop.
Glasgow City Council said that the remains of the B-listed Victorian building were "fatally compromised" and "highly dangerous".
Among the first remnants of the building to be dismantled is a 'floating' chimney stack still attached to the adjoining block, several storeys above ground.
Council leader Susan Aitken told the Herald that a compulsory purchase order (CPO) might be a useful option for Union Corner.
But the council said there were no plans to build a hotel on the site, despite some newspaper reports.
A "safe zone" has been set up around the building, extending to Central Station which will remain closed for the rest of the week.
The council took control of the site from the Scottish Fire and Rescue Service (SFRS) on Thursday and carried out its own assessment of the damaged structure.
Raymond Barlow, from the council's building standards team, said it was not possible for the council to say exactly which aspects of the building could be saved, nor how long the demolition will take.
He said: "You are talking a good number of weeks before we see any change to aspects around here.
"We need to start work at one end of the site, take off the highest bits of danger and hopefully that will let us start to access parts of the station and get the station back up before coming to the façade."
The council said crews would work around the clock, but timescales were weather-dependent as cranes cannot be used in high winds.
The fire broke out in a vape shop at about 15:45 on Sunday afternoon - crews from the SFRS were swiftly on the scene.
Within hours, the flames had spread to other parts of the block and smoke engulfed the street.
One man tried to tackle the fire at the shop with a small fire extinguisher but had to abandon the attempt after a series of explosions.
By 21:00, it was clear that the building - including its distinctive dome - had collapsed.
Timeline: The fire began in a vape shop next to the station side entrance on Union Street on Sunday afternoonWithin hours the blaze had engulfed the entire building on Union CornerAt the height of the emergency operation, 250 firefighters, 18 fire engines and specialist resources, including a high-volume pump drawing water from the River Clyde, were on the scene.
A nearby hotel was evacuated and Central Station has been closed - though low-level services resumed earlier in the week.
Crews have since been working to cool off hotspots.
With most of the building reduced to rubble, only the facade on Gordon Street was left standing.
First Minister John Swinney has said that the Scottish government held discussions with Glasgow City Council over supporting local businesses.
He said the local authority was gathering information from affected businesses, and details of financial support would be announced soon.
He also said ministers were also looking at ways for tighter regulation of vape shops.
Carina McCreery ran a nail bar in the building and told BBC Radio Scotland Breakfast that the community had "rallied round" the affected businesses.
She told the programme: "People have been sending flowers and cards, kind messages - even my postman gave me a fiver yesterday towards my GoFundMe that my friend set up for me.
"It was really, really sweet. Brands have reached out offering to send new pieces of kit replacing the stuff that we've lost. It's been a bit of everything."
She added: "I only opened in November and I put quite a few thousand pounds towards kitting it out. It's been a really big hit, in terms of what's been lost."
McCreery said she wanted the government support to include expediting tattoo and piercing licences for people that need them.
Scott McAnally, who owned a tattoo parlour in the building, said he had lost about £40,000 worth of equipment in the blaze.
He was asked if he would set up shop above a vape shop again after the fire.
McAnally replied: "I think the unfortunate thing about the high street in Glasgow, and probably most cities, is that I don't think you have a choice if you want to open your shop above a vape shop.
"You just shut your eyes and throw a stone and you'll hit one.
"Retail's kind of failing so it is these kinds of businesses that end up taking over most of the retail premises on street level."
The Union Corner building was constructed in 1851 and pre-dates Glasgow Central Station itself, which opened in 1879.
Designed by architect James Brown of the firm Brown & Carrick, it was built for Francis Orr & Sons - a well-known Glaswegian stationery and publishing company.
For years there was an Irn Bru advert on the rooftop and a red neon Bells sign on the dome itself, which made it a distinctive landmark in the city.
Among the businesses that until recently occupied the ground floor were the Blue Lagoon fish and chip shop and Sexy Coffee.
