Angel Food Ministries, an Atlanta-area nonprofit organization that sells low-cost food to the poor and jobless nationwide, has let go nearly a fifth of its workforce over the past two weeks, The Atlanta Journal-Constitution writes.

A spokesman for the charity said rising shipping costs prompted Angel Food to lay off 49 of its 260 employees and reduce managers’ salaries by up to 20 percent. The organization sells discount groceries through a national network of more than 5,000 churches.

Last year the FBI and the Internal Revenue Service raided the charity’s Monroe, Ga., headquarters, but nothing came of the investigation. The organization has since undergone an audit, and Mr. Wingo’s wife and one of his sons have left Angel Food.