Four Palestinians were shot and wounded Saturday, one possibly by a Jewish settler, as new clashes erupted in the West Bank city of Nablus and the biblical town of Hebron, Arab and army sources said.

Despite the violence, the sources characterized Saturday as one of the calmest days in the nearly 5-month-old Palestinian uprising that has left at least 170 people, 168 Arabs and two Jews, dead in the occupied territories.Inside Israel, hundreds of Druse Moslems staged a picnic protest in the Galilee in a dispute over farm land, and ultra-Orthodox Jews in Jerusalem stoned a cinema in their battle against Sabbath film screenings.

In Hebron, the army said, Arabs surrounded a group of Jews from the Kiryat Arba settlement on a Sabbath walk with their standard-issue Uzi submachine guns. The settlers reported they fired in the air. But, soon after, a young Arab was brought to a local hospital lightly wounded by gunfire.

The army was investigating whether a settler shot the Arab, the army spokesman said.

In Nablus, army and Arab sources said troops clashed with Arab protesters in the Old City marketplace and on Al Nasser Street, which local residents recently renamed "Abu Jihad Street" for the assassinated military commander of the Palestine Liberation Organization.

A hit squad killed Khalil Al-Wazir, who went by the name "Abu Jihad," in his suburban Tunis, Tunisia, home two weeks ago, sparking riots in the occupied Gaza Strip and West Bank. An army spokesman said border police also clashed with Arabs inside the Balata refugee camp in Nablus. A policeman was lightly wounded by a rock, prompting the force to open fire and clamp a curfew on the camp, home to 12,000 Palestinians.