This is the horrifying moment that a police horse at Notting Hill Carnival collapsed to the ground and suddenly died.
The incident happened at around 9pm on Sunday (August 28) in west London.
Sandown, a 14-year-old chestnut gelding horse standing at 16 hands high, was seen hitting the concrete as an officer desperately tried to take control of its reins.
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Carnival goers watched on in horror as other police officers rushed to help their colleague tending to the animal.
Other officers kept members of the public at bay as Sandown laid motionless on the floor.
Tragically, the emergency care it received was not enough to prevent the horse from passing away.
In a tribute to Sandown, the Metropolitan Police Force said that it was one of their most experienced animals and had policed "all types of events" across the capital.
The death was described as "sudden". A post-mortem is now underway to discover the cause.
An eyewitness said of the incident: "I was around the horse for half an hour or so before it collapsed and it looked really uncomfortable.
"It was mumbling constantly and the officer was trying to get it to calm down.
"In the end it looked like the heat and the environment was too much for it and it just started fitting.
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"It was horrific to watch, and I've struggled to sleep the last few nights thinking about what happened."
This year's Notting Hill Carnival was marred by several troubling events, including the stabbing of a young man and the sexual assault of two female police officers – with some calling for the event to end.
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