The Athens Metro Workers’ Union (SELMA) has announced a warning strike on December 13, 2024, from 9 PM until service ends. The union cites unresolved contractual and economic issues that have lingered due to unfulfilled commitments from responsible parties. They are seeking immediate solutions to ensure uninterrupted service, along with an extension for a program involving 220 workers and demands for hazardous duty pay and other worker protections.