Free Patriotic Movement leader MP Michel Aoun on Tuesday reiterated his condemnation of the assassination of Intelligence Bureau chief Maj. Gen. Wissam al-Hasan, but stressed that “political accusation” must stop.

“Accusations must stop because there is nothing called 'political accusation,' which is something outrageous,” Aoun said after the weekly meeting of the Change and Reform bloc, referring to the March 14's camp accusation that the Syrian regime was behind the crime.

South Lebanon Prosecutor Judge Samih al-Hajj on Tuesday filed a lawsuit against persons unknown on charges of trying to assassinate Free Patriotic Movement leader MP Michel Aoun in the coastal city of Sidon in September.

Media reports said Aoun's convoy came under gunfire in Sidon on September 22 while he was returning from Jezzine.

Prime Minister Najib Miqati on Tuesday stressed that he is doing what his conscience obligates him to do – “protecting Lebanon from political vacuum and divisions,” amid calls by the March 14 forces for him to resign.

“With my arrival in the holy city of Medina, I will start praying to God Almighty to protect Lebanon and the Lebanese from any evil,” Miqati said on the social networking website Twitter, after he arrived in Saudi Arabia to perform the hajj pilgrimage.

More than 100,000 Syrians have fled their war-torn country for neighboring Lebanon, itself hit by rising tensions in recent days, the U.N. refugee agency said Tuesday.

"Lebanon has become the third country in the region to see its population of registered Syrian refugees and people waiting for registration (exceed) the 100,000 mark," the UNHCR said in a statement.

President Michel Suleiman voiced on Tuesday his support for the army's efforts to maintain peace and stability in Lebanon.

He said after meeting Defense Minister Fayez Ghosn: “The army's measures to preserve security have demonstrated that the state and all of its institutions are the only safe haven for all the Lebanese people.”

President Michel Suleiman held a series of consultations on Tuesday with Lebanese foes over the political situation in the country while the opposition insists on the resignation of the cabinet as a key condition to resume any political activity with the March 8 alliance.

Head of al-Mustaqbal parliamentary bloc MP Fouad Saniora held talks with Suleiman at the Baabda Palace, where he briefed him on the March 14 alliance's demands concerning the immediate resignation of the government and the camp's stance from the recent developments in the country.

March 14 camp MP Ammar Houri revealed that he and four colleagues were texted death threats from a Syrian telephone number before and after Internal Security Forces Intelligence Bureau head Wissam al-Hasan's assassination on Friday.

"On the eve of the attack, we received an SMS from a Syrian number that read: 'Sons of bitches, we will get you one by one,'" Ammar Houri said on television on Monday night.

Prime Minister Najib Miqati signed on Tuesday the decree to refer the case of the assassination of Internal Security Forces Intelligence Bureau head Wissam al-Hasan's to the judicial council.

The decree has also been referred to President Michel Suleiman.

The March 14 alliance is pressing forward with its decision to topple the cabinet as it will boycott any official activity, including the parliament, An Nahar newspaper reported on Tuesday.

Lawmakers affiliated with the March 14 parliamentary blocs boycotted Tuesday's joint parliamentary committees meeting, which is set to tackle the new electoral draft law.

EU foreign policy chief Catherine Ashton warned on Tuesday against a political vacuum in Lebanon after the opposition March 14 camp called for Premier Najib Miqati to step down over the assassination of Intelligence Bureau chief Maj. Gen. Wissam al-Hasan in a car bombing blamed on Syria.

Ashton met with Miqati at the Grand Serail, President Michel Suleiman at the Baabda palace and Speaker Nabih Berri at Ain el-Tineh.