TEHRAN, Iran, (AP) – An Iranian opposition leader has revealed details about a prisoner raped by his jailers in the country’s postelection crackdown.

Mahdi Karroubi says he will detail more cases if authorities continue to deny his allegations. Karroubi’s claims that protesters arrested in the crackdown have been raped have raised a storm of criticism from pro-government conservatives.

Karroubi posted to his party’s Web site a statement by an unidentified male prisoner describing his rape in prison. The victim says a doctor verified his claims.

Allegations of torture have become a major embarrassment for Iran’s clerical leadership after the fierce crackdown that crushed pro-opposition protests following the disputed June 12 presidential election.