A 14-year-old Melbourne teenager is flung to the ground and knocked out during an arrest.

A 14-YEAR-OLD boy is being treated by paramedics after being knocked to the ground by police during a violent confrontation in Melbourne.

The incident at Packenham train station in the city’s south east shows the boy’s head hitting the pavement as the policeman throws the boy to the ground.

The boy appears to be unconscious as the officer handcuffs him.

The teenager’s friends claim things turned violent when they failed to hand over their personal details to police following questions about a stolen bike.

“The cop was swearing the whole time and then Zac said one swear word and the cop started getting really angry,” one boy told Sky News.

“We asked for his badge number multiple times, which he refused to give to us. And then he arrested Zac and knocked him out, pretty much.”

The 14-year-old boy was treated by paramedics.

Victoria Police released the following statement: “Police were conducting foot patrols at Pakenham Railway Station when they came across a large group of youths taking part in antisocial behaviour about 2.40pm on 22 December 2015. Police have spoken to several members of the group who refused to give their details. A 17-year-old boy was arrested while police attempted to confirm his identity. Police also attempted to arrest a 14-year-old boy who refused to give his details. During the arrest the boy has fallen to the ground, hit his head and was unconscious for a short time. He was taken to hospital but was not admitted. Police have liaised with the boy and his family and a caution notice was given in relation to use abusive words in a public place. No complaint has been received in relation to police action during the arrest.”