A protest over the Greek government’s response to the nation’s largest ever train crash turned violent on Friday as Scores of youths hurled rocks and gasoline bombs at police.

Riot police fired volleys of tear gas, stun grenades and water at protesters hurling gasoline bombs and smashed-up paving stones in Athens during mass demonstrations Friday to mark the second anniversary of a devastating train crash that has become a symbol of institutional failure in Greece.

Riot police have fired volleys of tear gas, stun grenades and water cannons at protesters hurling gasoline bombs and smashed-up paving stones in Athens.