Three top Yemeni army generals have declared their support for anti-government protesters seeking the resignation of the country''s president, Ali Abudullah Saleh.

Brigadier Ali Mohsen Saleh, the head of the north western military zone and the head of the first armoured division, said on Monday that he had deployed army units to protect the protesters.

Two more generals rallied behind Brigadier Saleh soon after.

Addressing a news conference, Brigadier Saleh said: "Yemen today, is suffering from a comprehensive and dangerous crisis and it is widespread.

"Lack of dialogue and oppression of peaceful protesters in the pubclic sphere, resulted in crisis which has increased each day.

"And it is because of what I feel about the emotions of officers and leaders in the armed forces, who are an integral part of the people, and protectors of the people, I declare, on their behalf, our peaceful support of the youth revolution and their demands and that we will fulfil our duties."

The announcement came days after scores died when armed men fired at an anti-government protest in the capital Sanaa.

Several ministers resigned from the government after Friday''s violence. Abdullah Alsaidi, Yemen''s ambassador to the United Nations, also quit in protest over the killings.

Hakim Al Masmari, editor-in-chief of Yemen Post, told Al Jazeera that Monday's army defections spell the end for President Saleh.

"It is officially over, now that 60 per cent of the army is allied with the protesters.

"For Ali Mohsin Saleh to annnouce this, it is a clear sign to President Saleh that the game is over and that he must step down now.

"According to our sources, the president knew that this will happen and he expects Brigadier Saleh to let him leave without further degradation and humiliation," he said.

Popular uprising

On Sunday, President Saleh fired his entire cabinet, which came after a month-long popular uprising calling for political reform and his resignation.

The president asked the cabinet to serve as caretaker government until he forms a new one.

Adding even more pressure on Saleh, the country''s most powerful tribal confederation on Sunday called on him to step down.

Sheikh Sadiq al-Ahmar, the leader of Hashed, which includes Saleh''s tribe, issued a statement asking the president to respond to the people''s demands and leave peacefully. It was co-signed by several religious leaders.

Jamila Ali Raja, former Yemeni foreign ministry spokesperson told Al Jazeera, "They are preparing a scene for military protection, at the same time a transitional government will be put in place, so a similar scenario to Egypt."

Speaking to Al Jazeera, Gabool al Mutawakil, a youth activist, said: "We are now in the middle of two militaries - one that has joined the protesters and one that is under the authority of President Saleh.

"There is fear of civil war, but we are insisting on having a peaceful revolution."

Violence condemned

Saleh has been in power since 1978, and is facing one of the toughest challenges during his tenure.

The violence used against demonstrators has prompted condemnation from the UN and the US, which backs Yemen''''s government with hundreds of millions in military aid to battle an al-Qaeda offshoot.

Muslim clerics have called on Yemeni soldiers to disobey orders to shoot at demonstrators, and blamed Saleh for the slaughter on Friday.

"The defections are on all sides and this is just the beginning," Abdul Ghani Al Iryani, a political analyst in the capital, Sanaa, told Al Jazeera.

"I think if we don''t come to some kind of national reconciliation, the defections will continue until the regime falls.

"The president is talking to various political groups but he''''s not talking to the main group, which is the youth in the square.

"If he wants to get out of this, he will have to address their concerns, he will have to include them in any national dialogue and he will have to accept the fact that much of his power needs to be transferred to a government of national unity."

Twenty-four parliamentarians have left the ruling party since the protests began.

Huda al-Baan, Yemen's human rights minister, said she had resigned from the government and the ruling party in protest over the sniper attack on demonstrators.

She said in a statement late on Saturday that her resignation was to protest the "massacre" of demonstrators.

The undersecretary at the ministry, Ali Taysir, also resigned.

Nabil al-Faqih, the minister of tourism, resigned on Friday over the "unjustifiable use of force" against protesters, while the minister of religious endowments Hamoud al-Hattar resigned earlier in the week.

The chief of the state news agency has also stepped down, along with Yemen''s ambassador to Lebanon.

Witnesses said pro-government "thugs" rained bullets from rooftops near a square close to Sanaa University, which for weeks has been the centre of demonstrations calling for the end of Saleh''s rule.