Police have released confronting video of thugs attacking two teens in a north Melbourne carpark.

About 5pm last Monday, two teenage boys were approached by a group of men while they were walking past the library and council chambers on Pascoe Vale Road, in Broadmeadows.

In the video, the two victims are seen cowering on the ground, trying to protect their heads as their attackers repeatedly come back kicking, punching and stomping on the boy’s heads.

The teens were approached by the group of men after trying to start a fight at Broadmeadows train station. (Supplied)

“It’s just sickening, like a pack of hyenas they were,” witness Steve Medcraft told 9NEWS.

“These kids could have got seriously damaged, or even killed.”

Councillor Medcraft said he believed the attack was racially motivated.

The victims were kicked and punched in the head at the Broadmeadows library carpark. (Supplied)

According to witnesses, two of the attackers allegedly tried to get the two teens to fight them at the local train station, with one reportedly brandishing a knife.

When the boys refused, the men followed them to the carpark location where a third attacker joined them.