<br /> <p>Clashes erupted in Athens after a protest march on December 6, commemorating the police killing of 15-year-old Alexandros Grigoropoulos eight years ago that sparked weeks of rioting in the Greek capital.</p><p>After hundreds marched peacefully, street battles broke out in Athens’ central Exarcheia district as protesters reportedly</a> hurled petrol bombs and rocks at riot police, who responded with tear gas.</p><br /><p>Exarcheia was the location of the fatal shooting in 2008, which followed an altercation between youths and two police officers</a>. Credit: YouTube/Will Horner via Storyful</p><br />