Canada's security service identified possible Hizbullah reprisals over Hariri murder indictments as a national security threat, said a report Thursday.

A classified document cited by the Montreal French-language daily La Presse, entitled "Special Tribunal for Lebanon: does Hizbullah have recourse for violence in 2011?" outlines the concerns of Canada's Integrated Threat Assessment Center.

Interior Minister Marwan Charbel on Thursday quoted the military expert probing the Antelias blast as saying that the explosion was caused by a Western-made defensive hand grenade.

A statement issued by the premiership following Thursday’s cabinet session said “the interior minister demonstrated the summary of a report prepared by the military expert tasked with probing the Antelias incident.”

Prime Minister Najib Miqati stressed Thursday the need to unveil the truth behind the 2005 assassination of ex-PM Rafik Hariri “away from any politicization or vengeance.”

During a cabinet session held Thursday, Miqati said: “Some may evaluate the content of the indictment in different ways, but what concerns us the most is unveiling the truth behind the assassination of martyr premier Rafik Hariri and his companions away from any politicization or vengeance.”

The cabinet has decided to hold a special session Friday dedicated to pursuing its discussions on the issue of electricity, Information Minister Walid al-Daouq said after Thursday’s cabinet meeting.

“A ministerial meeting will be held tomorrow to discuss the issue of electricity,” Daouq told reporters after the weekly cabinet session.

Lebanese Forces leader Samir Geagea on Thursday stressed that “today we are before a momentous event which is the publishing of the first part of the indictment in the murder case of ex-PM Rafik Hariri and all the martyrs of the Cedar Revolution.”

During a meeting with a delegation of Lebanese expatriates living in America, Australia, Africa, Europe and the Gulf, Geagea added: “It was really a historic day … the Lebanese people -- through a persistent struggle that cost it a lot of efforts, tears and bloodshed, especially between 2005-2009 – was able to launch the process of fulfilling justice.”

Former General Jamil al-Sayyed refused to comment on the indictment that was published by the Special Tribunal for Lebanon probing the assassination of ex-Prime Minister Rafik Hariri.

“This indictment only received dull comments, despite the desperate attempts by al-Mustaqbal movement media to provoke people,” he said on Thursday in a statement published by his press office.

Special Tribunal for Lebanon President Judge Antonio Cassese considered the efforts made by Lebanese authorities to find the four suspects in ex-PM Rafik Hariri’s murder as reasonable but called on them to intensify their attempts to arrest the four men.

“Whilst Judge Cassese deemed their efforts to be reasonable he also called on the authorities to intensify their attempts to arrest the accused,” the STL said in a statement.

Marada leader MP Suleiman Franjieh said on Thursday that ex-Prime Minister Saad Hariri’s hatred has overcome the national interest since the assassination of his father on Feb. 14, 2005.

Franjieh, in remarks to al-Manar television, said that Hariri placed the murder of his father in a position higher than Lebanon and its stability.

Contacts are ongoing between Hizbullah, the Free Patriotic Movement and AMAL to discuss the steps that should be taken after the Special Tribunal for Lebanon probing the assassination of ex-Premier Rafik Hariri published the indictment, al-Liwaa newspaper reported on Thursday.

The STL published on Wednesday the indictment after it said there was enough evidence to try four Hizbullah members in the murder of Hariri.

Eight hand grenades were found on Thursday in a box on the Barbara highway near the city of Jbeil, media reports said.

The National News Agency said the grenades were found lying by the side of the highway. A black plastic bag was found next to them.