TEL AVIV, JAN. 2 -- Israeli warplanes and helicopter gunships launched air attacks on Palestinian positions in Lebanon last night, including the headquarters of guerrillas who claimed responsibility for a hang-glider attack on an Israeli military camp.

An Army spokeswoman said warplanes attacked positions northeast and south of Sidon, Lebanon, that served as headquarters for Yasser Arafat's Fatah, the main faction of the Palestine Liberation Organization, and Ahmed Jibril's Popular Front for the Liberation of Palestine-General Command, which claimed responsibility for the attack on the Army base in November.

Six Israeli soldiers were killed and eight wounded in the raid by an armed guerrilla who flew into Israel on a hang glider and landed near the camp.

Earlier today, witnesses and security sources in Sidon said Israeli planes and helicopters attacked Palestinian- and Druze-held areas along the southern Lebanese coast.

They said the gunboats pounded the areas of Damur and Jiyah, 15 miles south of Beirut, killing three Druze militiamen and wounding several others. At least two Israeli planes attacked Palestinian targets near the refugee camp of Ain Helweh, about 25 miles south of Beirut, witnesses said.

About 80,000 Palestinians live in Ain Helweh and nearby settlements. Black smoke billowed from the area after the three-minute strike. Police had no immediate casualty figures.

The raid coincided with a blockade imposed by the Lebanese military on Druze-held ports today to force the group to hand over a helicopter seized by a deserting Druze Air Force officer.