“The court bans the activities of the Muslim Brotherhood organization and its non-governmental organization and all the activities that it participates in and any organization derived from it,” said the presiding Judge Mohammed al-Sayed.

The decision marks a dramatic escalation of a crackdown by the military-backed government against the supporters of the ousted Mursi.

The court ordered the government to seize the Brotherhood’s funds and administer its frozen assets.

The army-backed government is waging the toughest crackdown in decades on the Islamist group, which says it has a million members. Security forces killed hundreds of its supporters and rounded up thousands more since Mursi was deposed by the army on July 3 after mass protests against his rule.

The Brotherhood won parliamentary and presidential elections after veteran autocrat Hosni Mubarak was overthrown in 2011.

It was officially registered as a recognized non-governmental organization in March, after being outlawed for most of its 85 year existence.

(With The Associated Press and Reuters)