Israeli police said on Friday that Muslim men under the age of 50 would not be allowed at the al-Aqsa Mosque compound, in an announcement made hours before expected mass protests.
Palestinians prepared for fresh demonstrations over new security measures at the holy site in occupied East Jerusalem, a week after a deadly shoot-out at the compound that triggered tensions.
The rallies were expected to begin after the Muslim Friday prayers, which take place around midday local time.
"Entry to the Old City and Temple Mount will be limited to men aged 50 and over. Women of all ages will be permitted," a police statement said.
Police swarmed into Jerusalem's Arab neighbourhoods in the morning, particularly in and around the walled Old City where the shrine is located.
At least 3,000 Israeli police and border police units had been deployed to the area, according to a police spokesman.
Israel's security cabinet said that Israeli police would decide when to remove metal detectors and turnstiles installed at the compound last week - a disappointing statement to Palestinians who view the measures as collective punishment and an infringement on the status quo, which gives Muslims religious control over the compound and Jews the right to visit, but not pray there.
Israel tightened its grip on the compound after two Israeli security officers were killed in an alleged attack by three Palestinians, who were killed by Israeli police following the violence.
On Thursday, Israeli Prime Minister Benjamin Netanyahu received recommendations from different sectors of Israel's security services on the metal detectors.
Israel's internal security service, Shin Bet, said the barriers should be removed, while Jerusalem police insisted they stay.
Palestinian member of the Knesset Mohammad Barakeh told a meeting of Palestinian leaders in Jerusalem on Friday that the security cabinet's decision is a "political game".
"The Israeli government's [decision] of referring the matter to the police is a political game in order to absolve Netanyahu of any responsibility by implying that this is not a political issue, rather a security issue, but the truth is that this is a political decision."
The leaders rejected Israel's measures and vowed to continue to hold prayers outside the compound until the barriers are removed.
Over the past week, there have been daily demonstrations and clashes between Israeli forces and Palestinians.
On Friday, a Palestinian advocacy group said 10 prominent Palestinian activists had been detained in Jerusalem.
The Palestinian Prisoners Club said Hatem Abdel Khader, the Jerusalem leader of Palestinian President Mahmoud Abbas' Fatah party, was among those arrested.
Thousands of Palestinians usually attend Friday prayers at the al-Aqsa compound [Jack Guez/AFP]
'Day of anger'
The Palestinian group Hamas and Muslim leaders worldwide have called for mass protests on Friday over the measures.
On Wednesday, Hamas leader Ismail Haniya warned Israel against crossing a "red line" at al-Aqsa Mosque compound.
"To the Zionist enemy, I say openly and clearly: al-Aqsa Mosque and Jerusalem are red lines. Truly they are red lines," he said.
"To the enemy I say, your policy of closure and imposition of collective punishments against the residents of Jerusalem and our places of sanctity will not be tolerated. "
The Doha-based International Union of Muslim scholars called for all Muslims to show solidarity with worshippers at al-Aqsa in a "day of anger".
"We call on all Muslims to make this Friday a day of anger against the Zionist actions in Jerusalem and the people residing there," a statement by the group read.
Earlier this week, Jerusalem's top Muslim leader called on all of the city's mosques to close on Friday and encourage worshippers to gather outside the gates of al-Aqsa Mosque for the weekly Friday prayers.
Grand Mufti Muhammad Hussein said Palestinian Muslims should instead gather outside the gates of al-Aqsa Mosque for the weekly Friday prayers.
Thousands of Palestinians usually attend Friday prayers at the compound.
Reporting from occupied East Jerusalem on Friday, Al Jazeera's Imran Khan said it was "clear Israeli forces don't want Muslim worshippers" outside Lion's Gate, one of the entrances to the Old City.
He said Israeli forces pushed about 100 Palestinians from the road leading to the gate and were only allowing residents to enter the Old City.
"The worshippers are very angry," Khan said.
Israeli forces at various checkpoints had turned away buses carrying Muslim worshippers to Jerusalem from the occupied West Bank and elsewhere, several Palestinians told Al Jazeera.
The wider al-Aqsa compound is known as al-Haram al-Sharif, or the Noble Sanctuary, by Muslims and the Temple Mount by Jews.
Abbas calls for intervention
Netanyahu said this week that he does not want to alter the status quo.
But Palestinians fear Israel is trying to retake the site by stealth.
Palestinian President Mahmoud Abbas cut short a trip to China on Wednesday to return to the occupied West Bank to deal with the mounting tensions.
On Wednesday he urged the international community to intervene.
Turkish President Recep Tayyip Erdogan, who had spoken to Abbas by phone earlier in the day, urged his Israeli counterpart Reuven Rivlin to remove the detectors.
"Given the importance that Haram al-Sharif carries for the whole Islamic world, the metal detectors put in place by Israel should be removed in the shortest possible time and an end put to the tension," Erdogan said.
The site houses al-Aqsa Mosque and the Dome of the Rock shrine, Islam's third holiest site after Mecca and Medina, as well as the ruins of the Biblical Jewish Temple.
Questions about control of the site frequently lead to outbursts of fighting.
Additional reporting by Ibrahim Husseini.
Source: Al Jazeera and news agencies