A good Samaritan who heard screams from a burning building, jumped through a window and rescued two children.
Police in Arizona said the anonymous passer-by quite simply “put his life on the line for these children”.
Firefighters and police were called after smoke was spotted coming from the apartment building in the town of Mesa, east of state capital Phoenix.
A two-year-old and a six-year-old were trapped inside.
The heart-stopping footage shows a police officer throwing rocks through an upstairs window as the man arrives at the building yelling “there are kids in here!”
He then leaps onto a garden fence and pulls himself up to the window, sweeping away broken glass before pulling out the window’s metal frame.
The video goes on to show him jumping onto the window ledge and in through the smashed-out window as he shouts to the children “come to the window – come to the window!”
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A spokesman for Mesa police told Sky News: “If wasn’t for the citizen who assisted, the outcome of this incident may have been very different.
‘Above and beyond’
“He saw the fire from a distance, jumped a wall to the apartment complex, and ran towards the fire to help.”
He said officers agreed the man “went above and beyond… and put his life on the line for these children.”
The man did not want to be identified but said he “only wanted to help rescue the kids if he could”.
The children, and four officers, were taken to hospital and treated for smoke inhalation.