According to Lebanese security sources, Hezbollah has put its militants in a state of full alert ahead of Sunday's manoeuvres. Israeli media have reported that Israel will hold from Sunday a large-scale civil defence exercise featuring scenarios including simulated missile attacks on populated areas - some with chemical warheads. UN sources in southern Lebanon said the peacekeepers will also "be watching the situation along the border with Lebanon on Sunday.

"Lebanese army commander Michel Suleiman and also Lebanon's Prime Minister Foaud Seniora have called on the UN peace mission forces in southern Lebanon (UNIFIL) to "monitor closely the situation at the borders with Israel."Also Saturday, Foreign Minister Fawzi Salkouh, who is close to Hezbollah, desrcibed the Israeli army drill as " dangerous.

"Salkouh warned that Israel could exploit major military exercises to exacerbate tensions along the volatile border between the two countries. Salkouh also expressed concern that Israel could violate the terms of UN Security Council Resolution 1701 which was adopted to end the month-long war between the Shiite militant group Hezbollah and Israel in south Lebanon in 2006.

According to Lebanese security sources, General Claudio Graziano, the commander of the United Nations Interim Force in Lebanon, informed the Lebanese army that Israel was planning "unprecedented and massive military manoeuvres on April 6."