LISBON, Portugal — A driver took a wrong turn and headed down a subway tunnel in Portugal's second-largest city Monday.
The driver, who was alone in his vehicle and was said to be in his fifties, veered down a ramp set aside for emergency vehicles during the morning commute in Porto.
He then drove about 550 yards on the tracks, forcing operators to halt trains in the tunnels, the company that runs the network said.
Emergency services later towed the vehicle out of the tunnel.
The company, Metropolitano do Porto, said it was investigating the incident.
The Porto subway network carries more than 34 million passengers a year.
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