DULUTH, MN (KDAL) - Two inmates at the federal prison camp in Duluth escaped at some point before10 p.m. Saturday night, according to prison officials. Investigators are searching for Michael Krzyzaniak and Gerald Greenfield. Krzyzaniak is a 64-year-old white male, described as 6-feet tall and 200 pounds with brown hair and hazel eyes. Greenfield is 67 and white, about 5'9" and 150 pounds with blonde hair and blue eyes. Both are serving time for white-collar crimes: Krzyzaniak, of Minneapolis, is serving a 151-month sentence for aiding and abetting wire fraud and income tax evasion, and was expected to be released Apr. 12, 2022. Greenfield, of Bloomington, MN, is serving 50 months for conspiracy to commit money laundering and was slated to get out Nov. 2, 2015. Anyone with information is urged to contact the United States Marshals Service at 218-529-3620 or call 9-1-1.