A soccer match at the Athens Olympic Stadium was the scene of mass rioting last Sunday. FC Olympiakos and FC Panathinaikos are long-standing rivals and a match between them is known as “The Derby of Eternal Enemies”. Out-of-control fans underscored that enmity in a disgraceful exhibition that left 20 police officers injured and at least 50 fans in custody.

The trouble started before the game even got underway, when Panathinaikos fans scuffled with police as they tried to enter the stadium without tickets. Midway through the game, with the score 1-0 in favour of Olympiakos, an outburst of burning flares and improvised Molotov cocktails rained down on the pitch, iron bars and seats were hurled and the game was called off entirely.

This level of violence over a football rivalry is not entirely unprecedented but the fact that these “fans” showed up with weapons of destruction gives the scene an alarmingly dark side. The Greek Super League has a practice of not allowing a visiting team’s fans to attend a match. This is intended to prevent this sort of over-the-top behaviour, which has been a problem in the past, but not to such a horrific extent.

Panathinaikos faces disciplinary measures that include a stiff fine and the possibility of having to play to an empty stadium for the rest of the season – if they play at all