Investigators released surveillance photos of who they are looking for.
They said last week a group of four people approached the man at the Grand Street station about 5:30 a.m., hit him and stole his belongings.
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The man will be OK.
No one was in custody Friday morning. Area Three detectives are investigating.
Anyone with information is asked to contact the Bureau of Detectives/Mass Transit at (312)-745-4443.
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