TYRE, Lebanon -- Israel yesterday shut down south Lebanon with a threat to blast any moving vehicles, as ground fighting intensified, airstrikes killed at least 19 civilians and Arab governments called for a full Israeli withdrawal as a condition of any cease-fire.

With U.S., French and Arab negotiators meeting into the evening at the United Nations, Israel voiced cautious interest in a Lebanese proposal to deploy 15,000 soldiers to control the ground in south Lebanon where Hezbollah has been firing missiles into Israel. But the warring sides appeared to be some distance apart on the text of a possible resolution, now not expected to come before the Security Council before tomorrow.

After four weeks of fighting, nearly 800 people have died on both sides. Rescuers in Lebanon pulled 28 additional corpses from the wreckage of Monday's attacks, raising that day's toll to 77 Lebanese -- the deadliest single day of the war.

Since the fighting began, at least 689 people have died on the Lebanese side of the conflict. The Israeli toll stood at 101 killed -- 36 civilians and 65 soldiers.

Early today, Israeli's military targeted Lebanon's largest Palestinian refugee camp from the air, killing at least one person and wounding three others. Lebanese and Palestinian officials said an Israeli gunship shelled the Ein el-Hilweh camp, but Israel's military called the attack an airstrike against a house used by Hezbollah guerrillas. The identities of the casualties weren't immediately known.

In Tyre, part of the south Lebanon region where Israel declared the no-drive zone, only pedestrians ventured into the streets. Although Israel said it would not attack humanitarian convoys, the United Nations was not taking any chances.

"There are two words that sum up where the humanitarian situation is, and these are 'not enough,' " said Wivina Belmonte of the U.N. Children's Fund. "Fuel supplies are not enough, hospitals are on life support, supplies of humanitarian goods trying to get into the country are not enough."

At least 160 Hezbollah rockets hit northern Israel, most of them in and around the towns of Nahariya, Kiryat Shemona, Maalot and Safed. No Israeli civilians were killed.

Some of the fiercest ground fighting raged around the village of Bint Jbail, a Hezbollah stronghold that Israeli has tried to capture for weeks. Three Israel soldiers were killed there yesterday, the military said, claiming that 35 Hezbollah guerrillas died in the fighting. Hezbollah would not confirm any deaths.

The issue of who will patrol southern Lebanon, where Hezbollah militants have been operating in their fight against Israel, has become the dominant sticking point in cease-fire negotiations at the United Nations. Israeli ground troops currently are in the area, and Lebanon and other Arab nations are insisting that the Israelis must leave when a cease-fire agreement is reached.

Meanwhile, Israel's military yesterday said it had dispatched Maj. Gen. Moshe Kaplinksi to coordinate military efforts in Lebanon. Israeli media linked the move to a possible intensification of the offensive as well as to criticism of the handling of the fight against Hezbollah. The change effectively sidelines the head of the northern command, Maj. Gen. Udi Adam.