Israeli soldiers killed three Palestinian guerrillas early Wednesday in a gunfight near an Israeli border community in southern Lebanon, a military spokesman said.

No Israeli troops were hurt in the clash that began at about 3 a.m. near the village of Meiss el-Jabal, the spokeman said. It was near the site where paratroopers killed three other guerrillas this week.In Sidon, Lebanon, the Palestinian Liberation Front said three of its members crossed into northern Israel Wednesday and fought with Israeli troops for six hours. It said their fate was unknown.

In the West Bank city of Nablus on Wednesday, 18-year-old Samir Shehadah was shot to death during a clash with Israeli troops, Arab reports said. Military sources confirmed the death and said it occurred during a violent clash in the city's central market area.

Three Palestinians were wounded by army gunfire in the nearby town of Tulkarem, Arab hospital officials said. A 13-year-old boy was shot and wounded in a stone-throwing clash in the Bureij refugee camp near Gaza City, hospital officials said.