This dramatic scene unfolded at Disneyland when a fight erupted between a couple and a family-of-three, reportedly due to a dispute over cutting in line.
A surprised bystander recorded footage showing two men and a woman wearing a rabbit-ear hat involved in a scuffle surrounded by young children.
The alarming video features one man in a black T-shirt and another in white, engaging in a physical altercation at Shanghai Disneyland in China.
A woman wearing a hat with rabbit ears is seen flailing her arms and appearing to hit them both.
She then charges at a woman carrying a young child who tries to break up the fight.
After being pushed back, the woman breaks down in tears and crouches to the ground, clutching the infant tightly.
The man in the white T-shirt, believed to be part of the family, is then wrestled to the ground after falling on some steps.
When he hits the floor, the woman with the child appears distressed and reaches out towards him.
She then stands up and grabs the woman wearing the hat.
Shocked visitors rush towards her, reaching out as if to take the small child away from the chaos.
The couple and family came to blows over queueing, according to local media.
It was also reported that the couple had tried to take a photo together, but were blocked by the family.
Theme park security are said to have stepped in to break up the scuffle.
It is not yet known whether anyone involved is facing consequences.
Disneyland has been approached for comment.
It comes as a street brawl broke out in North London, during which a driver reportedly ran over a cyclist.
Footage shows a man crossing the road wielding a baseball bat, seemingly ready to use it as a weapon.
Before he could strike, he was charged at, knocked to the ground and forced to scramble backwards while being chased.
The Metropolitan Police were contacted for comment.
Meanwhile, chaos broke out at a cup final in Brazil between players and supporters, with one star caught on camera kicking out at rival fans.
