A cable theft in Spain left more than 10,000 travelers stranded overnight Sunday after high-speed trains between Madrid and Andalusia came to a halt. Authorities say copper cables were stolen at five different sites,

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