Student protesters launch Molotov cocktails at police in Athens, Greece.
Black-clad demonstrators gather outside parliament in honor of a 15-year-old shot by police in 2008.
What started as a peaceful march devolves into a volley of stones, petrol bombs and other projectiles when some of the protesters break away.
Police fire tear gas back into the crowd.
The violence is reminiscent of larger riots that erupted when student, Alexandros Grigoropoulos was killed three years ago.
Anticipating clashes, police increased security in preparation for Tuesday's demonstration.
At least two people were injured in the protests also fueled by the country's financial crisis.
Lindsey Parietti, Reuters