U.N. Secretary General Ban Ki-moon has voiced his deep concerns over the "recent statements and events related to the work of the Special Tribunal for Lebanon."

Ban condemned Wednesday's attack on U.N. investigators at a gynecology clinic in Beirut Southern Suburbs, a Hizbullah stronghold, stressing that "such acts of interference and intimidation are unacceptable."

The Mustaqbal bloc repeated on Friday its support for the Special Tribunal for Lebanon "that all the Lebanese agreed on to protect political diversity."

It said in a statement after a meeting headed by Prime Minister Saad Hariri at the Center House: "We call on all political forces to respect the internal dialogue on the international investigation and respect the laws that protect the components of Lebanese society."

Liberation and Development bloc MP Qassem Hashem stressed on Friday that there is no way to doubt Hizbullah leader Sayyed Hassan Nasrallah's recent speech, saying that all international developments related to the Special Tribunal for Lebanon are aimed at destabilizing the country.

He told ANB television that Nasrallah's speech "did not embarrass us … but his statements represent the dividing line between allowing the whole of Lebanon to be violated and maintaining the Lebanese' dignity."

Reform and Change bloc MP Nabil Nicola stressed on Friday that Hizbullah Secretary General Sayyed Hassan Nasrallah has the right to demand the Lebanese not to cooperate with the Special Tribunal for Lebanon and the international investigators.

Addressing the Dahiyeh incident, he said that medical ethics obligate all doctors not to divulge patient information to anyone, not even the international investigators.

Lebanese Forces MP Antoine Zahra criticized on Friday Hizbullah leader Sayyed Hassan Nasrallah's recent speech, noting that the party has become an "oppressor of the Lebanese".

"Such a development should be met with peaceful resistance that would defend human rights," he told al-Arabiya television.

U.S. Assistant Secretary of State for Near Eastern Affairs Jeffrey Feltman rejected a theory which says that commitment to justice would lead to instability, thus gives an excuse to use violence and weapons in dealing with the Court indictment which is expected soon.

In an interview with An-Nahar newspaper published Friday, Feltman cautioned Syrian President Bashar Assad that the actions and practices of his allies should comply with the Syrian leadership's commitment to Lebanon's security and stability.

Parliament Speaker Nabih Berri returned home from an official visit to France where he met President Michel Sarkozy.

Berri announced after the meeting with Sarkozy that he discussed "everything" related to the Special Tribunal for Lebanon and the investigation into the assassination of former Premier Rafik Hariri.

A tribunal investigating the 2005 assassination of Lebanese Prime Minister Rafik Hariri said Thursday a Hizbullah call for a boycott was a "deliberate attempt to obstruct justice".

Hizbullah chief Hassan Nasrallah urged all Lebanese to boycott the U.N.-backed probe Special Tribunal for Lebanon (STL), warning that cooperation amounted to an attack on Hizbullah.

The United States on Thursday accused Syria and Iran of fuelling tensions in Lebanon with illicit arms supplies, which a top U.N. envoy warned was part of a "hurricane blowing up" in the Middle East.

New fears about Lebanon, where the government faces mounting pressure from Hizbullah, were raised at closed U.N. Security Council consultations in which the U.N. leadership again called for the disarming of "Hizbullah and other militias."

Warnings and tips from several security agencies have been given to Head of Democratic Gathering MP Walid Jumblat, according to Ad-Diyar newspaper.

The Druze leader has been advised to take precautions after his positions that have recently shifted towards supporting the Resistance and its project, added the daily.