Thousands of them called for the resignation of
"The government received our message," he said.
On Saturday, hundreds of supporters of Hezbollah and its allies - the Shia Muslim Amal Movement and the Free Patriotic Movement of Christian leader Michel Aoun - were stretched out on the pavement wrapped in blankets or huddled around camp fires keeping warm in the morning chill.
Scores of soldiers have cordoned off the government offices in
King Abdullah of
Although the dispute is political, many Lebanese fear the situation could spark sectarian violence. Tension between Sunnis and Shias is high, as is bad feeling between Christians who support leaders allied to the rival camps.
Participants in Friday's rally created a
Many chanted slogans demanding that Siniora quit.
In response, Sunni Muslim leader Saad al-Hariri, who backs Siniora, told Al Hurra television late on Friday: "No matter how long they stay in the street ... this will not bring down the government ..."
In a speech during the protest, Michel Aoun, the leader of the Free Patriotic Movement party, said: "I call on the prime minister and his ministers to quit."
Organisers said the protesters put up tents on main roads leading to the Grand Serail building to force the resignation of Siniora, who was inside his offices with a group of cabinet ministers.
"These are not Hezbollah supporters, they are Lebanese from every sect," Al Jazeera's Rula Amin said.
The call for peaceful street action came after a statements by Hassan Nasrallah, leader of Hezbollah, and other leaders.
"We appeal to all Lebanese, from every region and political movement, to take part in a peaceful and civilised demonstration on Friday to rid us of an incapable government that has failed in its mission," he said.
The Lebanese military has instructions to maintain order and not take sides during the protest and open-ended sit-in.
Tents, food, medical supplies and electrical generators are being distributed for what is expected to be a lengthy display of dissatisfaction.
Ibrahim al-Moussaoui, Al-Manar television's editor, said protesters will lay siege till the government is brought down.
"The government has let down the people of
"We will not allow any coup against our democratic regime. We are determined to stay the course, as our government is legitimate and constitutional ... and enjoys the confidence of parliament."
Walid Jumblatt, a senior pro-government politician, said both the March 14 coalition and the government will face the opposition protest and blockade calmly. "The current crisis in