A general strike by Greece’s private and public sector labor unions on Wednesday will cause disruption to public transport, it was announced on Monday.

On Tuesday, a day ahead of the strike, workers on inter-city trains and the Proastiakos suburban railway will walk off the job between 9 a.m. and noon. This means there train services to Athens International Airport either.

Hellenic Railways Organization (OSE) and Proastiakos staff will not attend work at all on Wednesday.

The metro, electric railway and tram will operate as normal on Wednesday but buses and trolley buses will only run between 9 a.m. and 9 p.m.