Berry disappeared at age 16 on April 21, 2003, the day before her 17th birthday. She had called her sister to say she was getting a ride home from her job at a Burger King, The Associated Press reported. About a year later, DeJesus, who was 14 at the time, disappeared on her way home from school.
Knight, who was 21 at the time she disappeared, was last seen leaving her cousin's house on Aug. 23, 2002.
Cleveland Mayor Frank G. Jackson responded quickly to the news of the discovery of the women.
"I am thankful that Amanda Berry, Gina DeJesus and Michelle Knight have been found alive," Jackson said. "We have many unanswered questions regarding this case and the investigation will be ongoing. ... I am thankful that these three young ladies are found and alive."