Victoria Police has denied their Protective Services Officers (PSO) were responsible for breaking a 16-year-old boy's ankle by stomping on it while he was being arrested.

The boy's father, 'Scott', released mobile phone video on social media, showing his son's arrest at the Bayswater railway station, in Melbourne's outer east, in the early hours of Sunday morning.

The video shows the officers wrestling with the boy on the ground and shows his badly broken ankle flopping around.

Police said the boy's ankle was broken when he tried to flee. ( Supplied )

PSOs have specialist training and work at all 212 metropolitan trains stations in Melbourne to patrol on the train platform, car parks and local area.

Victoria Police Superintendent Peter Ward said the teenager was a person of interest in an ongoing investigation and was being questioned by PSOs.

"He has then pushed one of our PSOs and attempted to flee down a set of seven stairs to the ground," Superintendent Ward said.

"During that process he sustained a significant injury to his ankle. During that arrest our PSOs have taken him into custody, realised he was injured and called an ambulance."

Superintendent Ward said the officers acted appropriately.

"Given the operating environment and how dynamic these incidents generally are, yes, I am satisfied with the actions of our PSOs," he said.

Police have stated that they have video evidence supporting their version of events.

"A lot of the operating environment for our PSOs is recorded anyway on the train stations and surrounding areas," Superintendent Ward said.

"We've done a lot of training with our people to make sure that they're aware of that, but our expectations are that they operate in accordance with our force values."

Father to file a complaint with police

Scott told ABC Melbourne that while his son did injure his ankle falling down the stairs, the officers are responsible for causing further damage.

The video showed the boy's badly broken ankle flopping behind him. ( Supplied )

"They tackled him to the ground, he got back up again and then one of the PSOs saw that one of his ankles was a little bit weak and decided to kick it, stomp on it, and that's when it finished," he said.

"He went down and they got on top of him."

Scott said his son's ankle is broken on both sides and there are broken bones in his foot as well.

"I'm convinced something went wrong. You don't end up with an ankle like that for no reason," he said.

"You can hold them down but you don't need to stomp on them until their foot's broken, ankle's broken."

Scott said he would lodge a complaint with police about the incident and apply for access to CCTV footage in the vicinity of the incident.