Commuters were left stranded after attempts to steal copper at the North Adelaide Railway Station caused a major fault across several metro train lines, SA Police says.
Department for Infrastructure and Transport chief executive, Jon Whelan, said nothing was stolen during the attempt but the damage caused the system to enter a safety mode.
"What occurred by cutting the cable they went into a safety mode which meant we lost our signalling, we lost some of our communications and some of the boom gates came down temporarily until we instigated our safety protocols," he said.