U.N. leader Ban Ki-moon said Tuesday that the Syrian civil war is a "calamity" that now threatens world peace and demands action by the divided U.N. Security Council.

Ban told the opening of the U.N. General Assembly that the Syria conflict "is a regional calamity with global ramifications" that needs action by the Security Council.

French Foreign Minister Laurent Fabius cautioned on Tuesday that the Syrian crisis may lead to a regional conflict.

He warned that the crisis may also spread to Lebanon.

Free Patriotic Movement leader MP Michel Aoun slammed on Tuesday the negative stances against Hizbullah chief Sayyed Hassan Nasrallah over his call for rallies to protest the anti-Islam film.

He said after the Change and Reform bloc's weekly meeting: “It's unacceptable to criticize whoever calls for calm.”

Lebanese Force leader Samir Geagea considered on Monday that Hizbullah Chief Sayyed Hassan Nasrallah exploited the anti-Islam film for political aims calling for a spiritual summit in Bkirki to resolve the matter.

"Nasrallah is very smart and Hizbullah's strategic leadership knows how to benefit from the circumstances," Geagea said in an interview with MTV.

Hizbullah chief Sayyed Hassan Nasrallah warned on Monday against the broadcast of the entire anti-Islam film.

He said: “The United States must realize that broadcasting the entire film will have very dangerous repercussions in the world.”

Phalange Party leader Amin Gemayel questioned on Monday Hizbullah chief Sayyed Hassan Nasrallah's call for protests against the anti-Islam film that sparked outrage in the Muslim world, noting that he made the announcement shortly after Pope Benedict XVI ended his trip to Lebanon.

He said during a press conference: “Nasrallah ended the accord, reached during the pontiff's visit, through this call for demonstrations.”

Progressive Socialist Party leader MP Walid Jumblat called on Monday for committing to the Taef accord as “an interpretation of Pope Benedict XVI's visit to Lebanon.”

He said in his weekly editorial in the PSP-affiliated al-Anbaa magazine: “The Lebanese people are obligated to double their efforts in order to implement the Apostolic Exhortation in order to remove fears of a large number of Lebanese, especially Christians, in order to eliminate the concept of minorities.”

Lebanese security officials said on Monday that four missiles fired by two Syrian warplanes have landed on Lebanese territory.

The officials said the missiles hit a rugged and remote area on the edge of the Lebanese border town of Arsal. There were no immediate reports of casualties.

Pope Benedict XVI called on Saturday on the Christian youth not to be afraid and to coexist with others, expressing admiration the courage of Syria's youth.

"Together with the young Christians, you are the future of this fine country and of the Middle East in general," he told them. "Seek to build it up together! And when you are older, continue to live in unity and harmony with Christians."

Pope Benedict XVI said on Saturday that mankind should reject vengeance and instead pardon the offenses of others, as he urged the Middle East's Christians and Muslims to forge a harmonious society by rejecting some harmful ideologies.

Those who desire to live in peace must have a change of heart, and that involves "rejecting revenge, acknowledging one’s faults, accepting apologies without demanding them and, not least, forgiveness," he said at Baabda palace on the second day of his visit to Lebanon.