ALAMOSGORDO, N.M. (AP) — Alamogordo Superintendent Adrianne Salas has stepped down amid pressure following two schools receiving "F'' grades from New Mexico.

The Alamogordo Daily News reports Salas submitted her resignation on Wednesday to the Alamogordo Public Schools board during a special meeting.

Her resignation came after Alamogordo High School and Oregon Elementary recently received F grades from the state Public Education Department.

MainGate, a nonpartisan nonprofit group in Alamogordo, called "an immediate change at the superintendent position is the best course of action," following the grades.

Alamogordo Chamber of Commerce Executive Director G.B. Oliver also said the grades were "alarming."

The school board said Salas will be on an extended leave until December 1 and has been relieved of all her official duties immediately.

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Information from: Alamogordo Daily News, http://www.alamogordonews.com