Egypt witnessed some of its worst street clashes on Dec. 4, when supporters of the Muslim Brotherhood clamped down on tents and protesters holding a sit-in in front of the presidential palace. Clashes ended with 10 dead and hundreds injured on the two sides.
The Brotherhood said it would mark the anniversary by planting a million trees in a campaign entitled ‘‘Let’s build Egypt.’’
In a statement posted on the group’s official website, its leader, Mohammed Badie, advised Muslims to ‘‘watch their enemies,’’ invoking challenges the Prophet Muhammad faced while founding a new state in the holy city of Medina in the 7th Century.
Commemorating the prophet’s birthday, a national holiday, Badie said Muhammad faced ‘‘hypocrites, filled with hatred and envy for the emerging group.’’
AP reporter Mariam Rizk contributed to this report