Egypt Islamists call for Friday rallies in Cairo: spokesman

Egyptians pass by burnt vehicles outside the destroyed camp of ousted Mohammed Morsi supporters outside Rabaa al-Adawiya mosque on August 15, 2013 in Cairo, Egypt. (AFP)

Egyptian Islamists have called for rallies in Cairo on Friday for a day of "anger" after more than 300 were killed in a crackdown on their protest camps, a spokesman said.

"Anti-coup rallies tomorrow will depart from all mosques of Cairo and head towards Ramsis square after Jumaa prayer in 'Friday of Anger'," Muslim Brotherhood spokesman Gehad El Haddad wrote on his Twitter account.