They said the current round of talks would not yield breakthroughs on the two main issues: the fate of pro-Syrian President Emile Lahoud and the disarming of the anti-Israeli Hizbollah guerrilla group.
"The gaps in the positions of participants are widening, not narrowing," one senior source said. "There are no quick fixes and the dialogue looks set to linger on without results."
The talks are expected to be adjourned until after an Arab summit in Sudan next week. The political sources said Lebanon would figure prominently at the summit with behind the scenes efforts by heavyweights Saudi Arabia and Egypt to ease tensions between Beirut and Damascus.
The consent of Syria, the dominant force in Lebanon for three decades until it withdrew its forces last year, is widely seen as essential if its close ally Lahoud is to step down or be removed.
Pro- and anti-Syrian Lebanese politicians first met at the "national dialogue" talks in early March to solve the country's worst crisis since the 1975-1990 civil war.
The talks resumed a day after U.N. Secretary-General Kofi Annan said he would begin talks with Beirut on creating a special court to try suspects in the murder last year of former Lebanese Prime Minister Rafik al-Hariri.
The politicians agreed last week on seeking diplomatic ties with Syria, disarming Palestinian fighters outside refugee camps within six months and asking the United Nations to declare an Israeli-occupied strip on the border as part of Lebanon.
But they deferred to this week discussing demands by anti-Syrian leaders to remove Lahoud from power and a U.N. Security Council resolution demanding Hizbollah disarms.
Lahoud, who is not at the talks, said on Saturday he would not cave in to mounting pressure to resign and that the Hizbollah guerrillas should keep their arms.
Hizbollah officials have also said in recent days the president should complete his term, which ends in November 2007, and that the talks should focus on how to defend Lebanon against Israel rather than solely on the group's weapons.
ReutersGüncelleme Tarihi: 20 Eylül 2018, 18:16