Oscar Puente, the transport minister, said “a serious act of sabotage” had brought some trains to a halt. Service was resuming on Monday.

Spanish authorities say that thousands of rail passengers in Spain have been hit with delays after copper cables used in the signaling system of a high-speed line traveling south from Madrid to Sevill

Thousands of people were left trapped on trains or stranded overnight after the theft of copper cables halted high-speed services between Madrid and southern Spain's Andalusia region. Authorities opened an investigation on Monday after Sunday's theft,