The two inmates who disappeared from a low-security prison camp in Duluth over the weekend are still missing. The inmates are 64-year-old Michael Krzyzaniak and 67-year-old Gerald Greenfield. They were discovered missing Saturday evening from the federal camp, which is on the former Duluth Air Force Base. Prison spokesman David Baker says today the men are missing but he has no further information. There's no fence at the minimum-security facility. Baker says it's possible the men just walked away. Both were serving time for fraud. Although neither man is considered dangerous, Baker advises anyone who sees them to call 911.