Arab League chief Amr Moussa on Tuesday resumed mediation between Lebanese Prime Minister Fouad Seniora's government and the Hezbollah-led opposition seeking to topple it.

"I have come back to resume contacts with all the parties and to make progress in my mission," Moussa said upon his arrival in the Lebanese capital as demonstrations calling for the cabinet's resignation entered the 19th day.

Moussa was quoted by local Naharnet news website as saying thathe would leave for Damascus in the next couple of days for talks with Syrian leaders regarding the mushrooming conflict in Lebanon,and he was in contact with all relevant regional countries including Iran.

Moussa, who arrived in Beirut on Tuesday for his third visit in this month, described his two-hour talks with Seniora as "very good," and said that he was satisfied with the talks, local ANB TV reported.

Opposition supporters have been camping out in central Beirut since Dec. 1, paralyzing the heart of the capital, to put pressure on Seniora to set up a national unity government.

Lebanese sectarian tension in the cabinet began to escalate last month when six pro-Syria ministers resigned after the opposition's talks with Seniora and the anti-Syrian majority in the parliament on forming a new national unity government collapsed.

In the wake of the resignations, the opposition said that Seniora's government had lost its legitimacy since Shiite Muslims were no longer represented.

However, the anti-Syrian ruling parliamentary majority has accused the opposition of doing Damascus's and Tehran's bidding and seeking to undermine the formation of an international tribunal on the case of former Prime Minister Rafik Hariri's killing.