Dramatic footage has emerged from Thessaloniki, Greece, of fire bombs being thrown at riot police during protests marking the anniversary of the police killing of 15-year-old Alexandros Grigoropoulos eight years ago.

The video, filmed overnight, shows Molotov Cocktails exploding around the officers, during the annual protest that often turns violent.

According to the filmer, "anarchists barricade[d] themselves inside Thessaloniki University Campus and rain[ed] down firebombs, rocks and fireworks against police."