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.

Hundreds of thousands of people rallied in cities and towns across Greece on Friday to demand justice on the second anniversary of the country’s deadliest-ever train crash, and striking workers grounded flights and halted sea and train transport.

Two years after the country’s deadliest rail disaster, many are still demanding greater safety and accountability.