In the wake of criticism for the way she handled the so-called “banana man” incident — in which a costumed student ran across a football field during a game — the principal of Colonial Forge High School in Stafford County has resigned.

Karen Spillman’s departure was announced Tuesday, according to The Web site reports that Assistant Superintendent Lisa Martin will supervise the school until an interim principal is assigned. A search will be conducted to fill the vacancy permanently.

The site also reports that about 30 Colonial Forge teachers attended Tuesday’s school board meeting to show support for Spillman, who came under fire after recommending that 14-year-old Bryan Thompson, a sophomore, be suspended.

Spillman said that Thomson violated the school’s code of conduct when he ran onto the school’s football field in a banana costume during halftime at a game on Sept. 16.

Some Colonial Forge students protested the punishment by wearing “Free Banana Man” t-shirts.

Stafford County Public Schools Superintendent Randy Bridges later apologized for the school’s response, and Thomson returned to school this week after the suspension was lifted.

NBC Washington’sPat Collins published the background story Tuesday: