They were arrested at a home in the 3900-block of West 62nd in Chicago. Police say they took the woman and her 5-month-old baby to that location from a home in Lemont on Tuesday.
"They pulled a weapon, pointed it, proceeded to bind her and duct tape her and with the baby took them to the location in Chicago," said Chief Kevin Shaughnessy, Lemont Police Dept.
Investigators say the suspects tried to get $300,000 ransom from the woman's boyfriend. She and the baby were not hurt.