Israeli police blocked thousands of Palestinians from entering Jerusalem on Monday and barred Arab youths from the historic mosques on the city's Temple Mount.

The heightened security was aimed at heading off clashes with Jewish extremists and to prevent protests over Israel's decision to deport four Moslem fundamentalist leaders from the occupied Gaza Strip.In the West Bank, students at the closed Bir Zeit University held a march and stoned police to protest the planned deportations of the four activists, members of the fundamentalist movement Hamas, Israel radio reported.

Police dispersed the demonstration with tear gas and rubber bullets and arrested four protesters, it said.

Officials anticipated angry reaction to the expulsions since Palestinians, many of whom were driven out of Israel with the founding of the state in 1948, consider deportation from the occupied lands the worst possible punishment.

Palestinian leader Faisal Husseini condemned the deportation orders and said the Palestinian leadership would demand the United Nations and the United States pressure Israel to cancel the orders.

Several government ministers from Prime Minister Yitzhak Shamir's right-wing Likud Party, meanwhile, have voiced their support for the death penalty, including Arens and Police Minister Roni Milo. But Shamir said international factors also should be considered during discussion of more serious measures.

Hamas, or Zeal, is a fundamentalist group that has called for violence against Israelis recently. Hamas claimed responsibility for the slayings of three Israelis at a factory outside Tel Aviv on Friday. The killers remain at large.

The Israeli army said the four to be deported were "instigators of incitement" but did not accuse them of direct involvement in the killings.