"We want revenge against Lahoud and Bashar," they shouted, as hundreds marched in the funeral procession in Beirut. Businesses, banks and schools were shut as Lebanon observed a national day of mourning.

Walid Eido, his 35-year-old son, two bodyguards and six passers-by were killed yesterday when a bomb ripped through his car as he drove near a popular waterfront promenade in the Lebanese capital.

Three ambulances carrying coffins of the victims were draped in Lebanese flags. Mourners carried white-and-blue flags of the Future Trend movement, to which Mr Eido belonged, and filed past pictures of Mr Eido and his lawyer son labeled with the slogan "Men of Justice".

The bombing came just three days after the government, together with the UN, started putting together an international tribunal ordered by the UN to try suspects in the assassination of the former prime minister Rafik Hariri in Beirut two years ago. A UN inquiry has implicated Syria, which denies involvement.

Mr Eido was a prominent supporter of the tribunal, a staunch follower of Mr Hariri and the seventh anti-Syrian figure killed in Lebanon in the past two years. He belonged to the majority anti-Syrian parliamentary bloc of Mr Hariri's son, Saad al-Hariri, which controls the government. Saad and his key allies led the mourners.

The pro-western prime minister, Fouad Siniora, has called for an emergency meeting of Arab foreign ministers and the international community to help in the investigation of Mr Eido's assassination

Allies of Mr Eido blamed his killing on Damascus and said it was in response to the establishment of the UN court.

"Terrorism of Syrian regime challenges the court: Walid Eido martyred," said the front-page headline of the daily al-Mustaqbal newspaper.

Mr Eido's death is likely to fuel tension between the government and the pro-Syrian opposition led by Hezbollah, which has been campaigning for the resignation of the Siniora government for months. Hezbollah has also condemned the killing.

Tension was already high in Lebanon before the attack. The army has been battling Islamist militants at a Palestinian refugee camp in the north for more than three weeks. More than 144 people have died in the battles in the worst internal fighting since the country's 1975-90 civil war.

A UN security council resolution setting up a tribunal to try suspects in the Hariri killing went into effect on June 10. Five less powerful bombs have exploded in and around Beirut in the past month, killing two people.

Top Picture: Banner with pictures of Mr Eido and his lawyer son Khaled labeled with the slogan "Men of Justice".

A mourner holds portraits of slain anti-Syrian lawmaker Walid Eido and his son Khaled who were killed by an explosion on Wednesday, as she walks in front of two ambulances covered with Lebanese flags carrying the two coffins during their funeral procession, in Beirut, Lebanon Thursday, June 14, 2007. A bomb-rigged car killed Eido, his 35-year-old son, two of his bodyguards and six others in a narrow street off the main waterfront in Manara.

Lebanese mourners take part in the funeral procession of killed legislator Walid Eido in Beirut June 14, 2007

A Lebanese woman, holds poster portraits of slain anti-syrian lawmaker Walid Eido, right, and his son Khaled who were both killed by an explosion on Wednesday.

Lebanon's Parliament Majority leader Saad al-Hariri gestures while taking part in the funeral procession of killed legislator Walid Eido in Beirut June 14, 2007

Sources: Guardian Unlimited, Ya Libnan

Manara Bombing Coverage on Ya Libnan

* Video of Walid Jumblatt responding to Walid Eido Assassination
* Lebanon mourns assassinated MP amidst calls for revenge
* No peace for Lebanon without Int'l forces on borders with Syria
* Syria must answer for its murders in Lebanon
* Lebanon MP assassination condemned worldwide, but Syria silent
* Lebanon's Hariri points finger at Syria as the terrorist serial killer
* Events in Lebanon since Hariri's murder point to a trend
* Video of massive Beirut explosion in Manara
* Eyewitness account of today's massive Beirut explosion
* Lebanon MP Walid Eido was the target of today's explosion, Bio
* Anti-Syrian Politician Assassinated, 10 killed in Beirut Bomb
* Massive explosion in Beirut's Manara Waterfront