In Portage, police say it's unknown what caused a crash that killed a 24-year-old Gary man. Officers responded to a single-vehicle crash on Route 12 at the US Steel bridge just after 7am Wednesday. Portage Police Public Information Officer Sgt. Keith Hughes says the passenger vehicle involved was traveling east on US 12 and crashed into the west side concrete wall that supports the bridge. Police say the vehicle was occupied by one man, whose identity has not been released. Police say he was airlifted to a Chicago-area hospital where he died. Icy roads made travel difficult around the Region Wednesday morning, but Portage Police say that did not appear to be a factor in this crash.