Greece has been left without national rail, island ferry and other transport services for a day as unions hold strikes and rallies to celebrate May Day.
Hundreds of people gathered in central Athens Wednesday for three separate rallies and marches to parliament organized by rival unions and left-wing groups.
The Greek capital was left without public bus, trolley bus and urban rail services all day due to a 24-hour transport union strike, although the city's metro trains were running most of the day.
The national train and island ferry services are set to resume Thursday. [AP]