Palestinian protesters have clashed with Israeli police in east Jerusalem as tension soured around a historic compound holy to Muslims and Jews.
Police have been deployed in force to avoid Muslim-Jewish violence
Some seven police were injured by stone throwers and 11 protesters were hurt in beatings by police using batons.
Muslims had gathered at the Haram al-Sharif - known to Jews as the Temple Mount - to prevent a protest reportedly planned by right-wing Jews.
Arabs under 45 had been barred from the mosque because of fears of unrest.
Israeli police were preparing for potential violence between Muslims and members of the right-wing Revava group.
The group has called on supporters to try to enter the shrine at the start of each Jewish calendar month in protest at the Israeli government's plans to withdraw from Gaza.
The first day of the Jewish month of Iyar begins on Monday evening, but as yet there has been no such attempt by Revava members.
About 5,000 Muslims from the West Bank and Arab east Jerusalem, and Palestinian citizens of Israel came to the mosque compound.
Many declared themselves willing to lay down their lives to defend the site against any intrusion by right-wing Jews, witnesses are quoted as saying.
Although east Jerusalem was captured by Israel in the 1967 war, the compound has remained in Muslim hands - against the wishes of many religious Jews who revere it as the biblical site of Solomon's Temple.