One man has died and three more people after an explosion ripped through number of flats in Scotland.
Investigations are ongoing after last night's blast in Alloa in Clackmannanshire - with images from the scene showing the devastating aftermath of the incident.
Emergency services were called to the scene at about 6pm on Sunday amid reports of an explosion at a property in the town's Kellie Place.
One man, who was inside the building when it happened, was killed in the blast - being pronounced dead at the scene. He has not yet been formally identified.
Part of the roof of the property was ripped off by the blast
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Three other people from the same building - a 72-year-old man, a 19-year-old man and a 49-year-old woman - were taken to nearby Forth Valley Royal Hospital for treatment to minor injuries.
Part of the roof of the property was ripped off by the blast, while a gaping hole has been left in the first floor of the building.
Police said the multi-agency response to the incident was stood down just before midnight - but investigations are continuing.
Chief Inspector Kat Thompson, area commander, said: "Our inquiries are ongoing to establish the full circumstances of what happened and we continue to work with partner agencies.
"Our thoughts are with the family of the man who has died and everyone affected in the local community.
"We would like to thank the local community for their co-operation and support and officers remain in the area."
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Gas engineers were seen working around the clock after the blast
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Alongside emergency services, engineers from gas distribution network Scottish Gas Networks (SGN) were among those at the scene today.
An SGN spokesperson said: "Our sympathies are with all those affected following the explosion at Kellie Place in Alloa.
"Our engineers have been on site since yesterday evening, as part of the emergency response, and are continuing to support the incident today while ensuring the area is safe."
Clackmannanshire Council said a rest centre for those affected was set up at Alloa town hall while gas and electrical work was undertaken onsite, with those affected all managing to find shelter with friends and family overnight.
Images from the scene show how the explosion ripped through the flats' stone walls
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A council spokesman said: "Council staff will continue to offer support to those affected if they are unable to return to their homes and continue to be on site today supporting the emergency services.
"Our thoughts remain with everyone affected, especially the family of the resident who tragically lost their life."
A Scottish Fire and Rescue Service spokesman confirmed crews responded to multiple reports of an explosion and house fire on Kellie Place on Sunday, and "immediately mobilised a number of resources to the scene".
These included a specialist urban search and rescue team, a heavy rescue unit, one height appliance and four fire engines, which left the scene at around 10.15pm, the spokesman said.
Keith Brown MSP issued a statement of sympathy with the family and friends of the man who died
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After the explosion, police and emergency services implemented a number of road closures to allow room for the multi-agency response.
A Scottish Ambulance Service spokesperson said: "We received a call at 6.04pm to attend an incident on Kellie Place, Alloa.
"We dispatched multiple resources to the scene including two ambulances, three special operations response teams (SORT), and one trauma team. Three patients were transported to Forth Valley Royal Hospital."
Keith Brown, the MSP for the Clackmannanshire and Dunblane constituency, said: "My immediate thoughts are of sympathy with the family and friends of the man who has died, and to send best wishes for full and speedy recoveries to those injured.
"As ever, in situations like this, many thanks are due to the emergency services for the way in which they have responded.
"There will be understandable concerns, particularly amongst residents of neighbouring properties, about the cause of this explosion and the extent of the damage to other homes.
"I know that the relevant authorities will be working hard to provide information, reassurance and assistance as quickly and efficiently as they can."
