Riot police in Athens had to intervene after a clash broke out between Greek football hooligans and a local Pakistani community which was celebrating a religious holiday marking the birthday of the Prophet.

Ferocious clashes (video below) between the two sides took place in the center of the Greek capital after the football hooligans began insulting the Muslims and trampling on Islamic flags.

Police deployed tear gas, stun grenades, and anti-riot methods to stop the violence.

A video from the scene shows utter mayhem in the street as hooligans trampled on Islamic flags, while Pakistanis try to defend themselves.

Members of the local Pakistani community were celebrating the birth of the Prophet Mohammed with a procession in one of the squares in downtown Athens.

At the same time, supporters of the Thessaloniki PAOK soccer club were in the area, heading for a league game.

Although escorted by police to a sporting venue, the hooligans began insulting the Muslims before attacking them.

There were around 200 fans, while some 800 people took part in the Muslim march, according to local media.