Occupied Jerusalem: Israeli security officials say they fear the Lebanese militia Hezbollah will attack Israel after the sides complete a prisoner swap this week.

The officials say that Israel's military is beefing up forces along the border in preparation for any attack after the prisoner swap on Wednesday.

The officials say Israel fears Hezbollah could strike as retaliation for the killing of a senior Hezbollah commander, Imad Mughniyeh, in a car bombing in Syria in February. Israel was blamed for his death.

In the swap, Israel will return five Lebanese prisoners in exchange for two soldiers captured by Hezbollah at the outset of a war in 2006. Israel believes the two soldiers are dead.