Mohammed el-Beltagy's videotaped speech was aired by Al-Jazeera on Wednesday. He said that the accusations are "lies" and an attempt to turn a political crisis into a security problem.

He went into hiding earlier this month after authorities violently broke up protest encampments held by supporters of President Mohammed Morsi, ousted in a July 3 coup. Hundreds died in the crackdown, including el-Beltagy's daughter.

In a backlash, Morsi supporters attacked police stations, government buildings and churches. Hundreds of Brotherhood leaders and Morsi supporters have been arrested.

Egypt's media, almost uniformly anti-Brotherhood after the closure of Islamist TV stations, have described the crackdown as a "war on terror."

(Agencies)

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