Israeli troops attacked suspected Shiite Moslem guerrilla bases north of Israel's "security zone" in southern Lebanon on Friday after officials guaranteed the safety of Christians living nearby.

The army said tanks, paratroopers and infantry units moved against strongholds near the towns of Jaba, Kfar Milki and Mazraat Ayn Abu Siwar.The statement said the areas were used by Hezbollah militia to launch attacks against Israeli troops and the South Lebanon Army militia, which is trained and financed by Israel.

The bases were damaged and there were no Israeli casualties, according to the army.