A new chief took charge of the Israeli-occupied territories Friday, and officials warned Palestinians that a sharp crackdown would follow any increase in attacks on Israelis.

Army Brig. Gen. Fredy Zach said the recent easing of the 3-week-old curfew in the occupied territories could be jeopardized if attacks continue."If there is an increase in violence, we will take all measures to stop this violence quickly and sharply," said Zach, deputy director of the military government in the territories.

Police Minister Roni Milo said Palestinians from the territories would still be banned from the Tel Aviv region, according to Israel radio.

Iraq has aimed many of its Scud-type missiles at this region and officials have expressed fear that residents could take revenge on Arabs in the area if a missile fell there again.

In a private ceremony, Maj. Gen. Danny Rothschild, head of military intelligence research, was installed as head of the military government in the occupied West Bank and Gaza Strip, where 1.7 million Palestinians live.

His predecessor, Shmuel Goren, held the job for seven years and was criticized by Israeli leftists for failing to foresee the pressures that ignited the 3-year-old Palestinian intefadeh, or uprising.

So far, 800 Palestinians have been killed by Israelis in intefadeh-related violence, and 338 have been executed as suspected collaborators by fellow Arabs. Fifty-seven Israelis have been killed.

Since the curfew was imposed to pre-empt pro-Iraqi unrest, only a few disturbances have been reported. The curfew effectively confines Palestinians to their homes for most of the day and night.