A 15-year-old boy plunged to his death after his homemade parachute failed to open properly in a leap from a tower block in Ukraine.

Horrifying footage shows Bogdan Firsov falling from the 14th floor in the eastern Ukrainian city of Makiivka.

Adults, including his mother, watched and are even said to have encouraged the teenager as he prepared to try out his makeshift parachute as part of a social media stunt.

The clip shows him with his arms outstretched on top of the building. As he falls, a parachute is visible but it does not unfurl properly during the 140ft drop.

The 15-year-old boy plunged to his death after his homemade parachute failed to open properly in a 'crazy' leap from a tower block in Ukraine

Horrifying footage shows Bogdan Firsov, pictured, falling from the 14th floor in the eastern Ukrainian city of Makiivka before he died yards from his mother

An eyewitness said: 'A crowd of people was there and nobody tried to stop him. They only filmed.

'People are not human any longer, they have lost all common sense.'

He said: 'It happened right in front of my eyes. The boy jumped down with a parachute. He flew down and hit the ground with his back. It was really tough.'

Other relatives joined the boy's mother in watching, filming and photographing the horror in jump for which he used a 'homemade' parachute, say reports.

They appeared to be 'encouraging him' and 'cheering him' - and no-one called the police to halt the stunt.

The mother - whose name was not given - was 'so shocked by his death that she refused to leave the spot'.

But experts said even a full working parachute would not have saved him.

Adults watched and are even said to have encouraged the teenager, pictured, as he prepared to try out his makeshift parachute

Other relatives joined the boy's mother in watching, filming and photographing the horror in jump for which he used a 'homemade' parachute, say reports. Pictured: Emergency services at the scene

The boy wore a helmet and there was 'padding' on the ground below but he died instantly

Newspaper Fakti reported: 'The lowest possible height for a jump with a parachute is 70 metres – a building of at least 25 storeys.

'And even then it would have been a dangerous jump.'

Another newspaper reported: 'Dozens of people watched him doing it, including his family, his mother.

'They were filming the jump but nobody was brave enough to stop this young 'extreme-lover'.

'Nobody called the police, and so we see the result.'

He had waited two minutes on the rooftop before jumping, said witnesses.

The boy wore a helmet and there was 'padding' on the ground below but he died instantly.

An ambulance arrived soon after the jump but he was pronounced dead at the scene.

Makiivka is in an area of eastern Ukraine controlled by pro-Russian forces.