A video doorbell captured the moment a gang on bikes attacked a boy outside a home, leaving him screaming and in pain.
The victim was punched and kicked in Prescot, Merseyside, at 6.44pm yesterday, reports the Liverpool Echo.
The incident was captured on a woman's Ring Doorbell camera and she said she heard the boy screaming in the street.
However, she could not see anybody on the road or on the pavement when she went outside.
The footage shows one lad being hit in the face by one member of the gang, who was on foot.
Two more people on bikes then arrive at the scene and run towards the fight, with one boy kicking the victim.
All three boys then get back onto the bikes and leave the boy - who can be heard shouting and appears to be in pain during the attack - lying on the floor.
The mum said she was "worried" for the boy and hoped he was okay.
She said: "I actually heard it from the kitchen because his screams were so loud and when I looked the doorbell had captured it. I'm just worried for him and hope he's ok.
"It's the second time we've seen someone attacked in a couple of months on the same corner and it's been a group piling on to one lad each time."
However, the mum-of-one, who was in her kitchen when she heard the screams, said she was "upset" when she looked back at the footage on her Ring Doorbell.
Merseyside Police told The Mirror the incident has not been reported to the force.