Public transport was severely disrupted in cities across Italy on Monday amid a strike organized by transport workers’ unions.

Due to a national strike that began at 8:30 and is scheduled to end at 16:30, all subway lines and rail services connecting Termini station to Centocelle were shut down in Rome, the capital’s transport company ATAC said.

The company also announced the possible cancellation of bus and tram services.

Naples’ transport company ANM said the subway line 1 in the southern port city was closed until 16:30.

Meanwhile public transport services were also disrupted in Milan, Genoa, Venice, Bologna, Florence and Bari.

The strike was organized to support the renewal of the contract of public-transport workers.