A 22-year-old French citizen was detained by police Wednesday morning after entering a Warsaw metro tunnel, causing significant disruptions to train service. The incident brought metro operations to a standstill as authorities responded to the security breach. The man’s motives for entering the tunnel remain unknown, as he has refused to provide a statement to investigators. Police are currently investigating the circumstances surrounding the intrusion and assessing any potential risks. The disruption caused considerable delays for commuters throughout the morning rush hour. Normal service has since been restored following the individual’s removal and a safety inspection of the tunnel.