Authorities in Spain are scrambling to uncover the details behind a theft that has left over 10,000 passengers stranded on high-speed trains between Madrid and the southern region of Andalusia. The incident, described by Transport Minister Óscar Puente as a "serious act of sabotage," occurred at five different sites near the train line, leading to significant disruption of services.

After the theft on Sunday, passengers reported being stuck on trains overnight, causing widespread frustration, particularly as many were traveling for a holiday weekend and towards the Feria festival in Seville.

While train services were expected to resume by Monday afternoon, the national rail manager Adif reported a difficult night for both commuters and staff dealing with the fall-out from the incident.

The theft comes on the heels of a mysterious blackout affecting Spain and Portugal, raising eyebrows and questions about potential vulnerabilities in the country's infrastructure. Local authorities, including civil guards and police, are collaborating to identify the culprits and mitigate future issues, particularly as thieving copper has become more rampant due to soaring prices in recent years.