CHICAGO -- Chicago police are releasing few details about their investigation into a fatal crash of a semitrailer that ran into a Chicago Transit Authority train station.
Two pedestrians were killed in the Friday evening accident.
The 51-year-old truck driver was briefly hospitalized after his truck careened off an expressway. After his release, he was led away by police in handcuffs.
Police spokesman John Mirabelli said the driver hasn't been charged, but he wouldn't say Sunday whether the driver was still being questioned by investigators.
Authorities say 21 people were injured in the crash.
Most have been released, but three remain hospitalized at Mount Sinai Hospital.
A spokeswoman says those patients have improved since Saturday -- when they were listed in fair condition -- but haven't improved enough to be listed in good condition.
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