An Egyptian court has banned the Muslim Brotherhood from carrying out any activities in the country and ordered the seizure of the group's funds.

It is the latest action in a campaign to debilitate the Islamist movement of deposed president Mohammed Mursi.

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

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 around one million members.

Security forces killed hundreds of its supporters and rounded up thousands more since Mr Mursi was deposed by the army on 3 July after mass protests against his rule.

The Brotherhood won parliamentary and presidential elections after former leader Hosni Mubarak was overthrown in 2011.

Army chief Abdel Fattah al-Sisi's toppling of Mr Mursi triggered a political crisis in the Arab world's most populous state, with the Brotherhood insisting that a military coup robbed it of power.