“For reasons beyond the control of the Metro, circulation is interrupted. We hope to resume circulation as soon as possible”, says the message.

The Lisbon Metropolitan operates daily with four lines: Yellow (Rato-Odivelas), Green (Telheiras-Cais do Sodré), Blue (Reboleira-Santa Apolónia) and Red (Airport-São Sebastião).

Normally, the metro runs between 06:30 and 01:00.