Italian Rail Fire Linked to Winter Olympics Concerns
Police describe fire as 'presumably deliberate', no group claimed responsibility.
Three incidents around Bologna under investigation, possibly linked to Milan–Cortina Games.
Trains suspended 45 minutes, causing 2-hour delays on Milan and Adriatic services.
Transport police and Digos unit investigate incident.
Officials warned of travel disruption, with Matteo Salvini monitoring.
Security analysts note echoes of pre-Olympic attacks on France's TGV network.
Milan and Venice–Cortina rail links raise concerns for Olympic travel.