The top Sunni Muslim authority on Monday called on Syrian authorities to immediately end" the bloodshed, saying that the crackdown on protesters is a "tragedy" that has gone too far.

"Al-Azhar was patient for a long time and avoided talking about the situation in Syria because of its sensitive nature ... but the situation has gone too far and there is no other solution but to put an end to this Arab and Islamic tragedy," the grand imam of Al-Azhar, Sheikh Ahmed al-Tayeb, said in a statement.

Kuwait and Bahrain on Monday decided to recall their ambassadors from Damascus, increasing the regional isolation of President Bashar al-Assad, a day after Saudi Arabia took the same step.

"We have decided to recall our ambassador from Syria for consultations," Kuwait’s Foreign Minister Sheikh Mohammed al-Sabah told reporters after meeting a parliamentary committee.

Syrian President Bashar Assad will forfeit legitimacy if his regime continues to carry out acts of violence against demonstrators in his country, the German government warned on Monday.

"If President Assad maintains his refusal to engage in dialogue with the Syrian people and continues to resort to violence, the German government will consider he has forfeited his legitimacy in further overseeing the fate of his country," deputy government spokesman Christoph Steegmans told a regular press conference.

Syrian security forces shot dead a mother and her two children fleeing an army assault on the eastern city of Deir al-Zour on Monday, the Syrian Observatory for Human rights cited residents as saying.

"The woman and her two children were trying to flee the Huweika district for somewhere safer when they were targeted by a security patrol," the rights group quoted residents as saying, adding that the father of the family was wounded.

The group of hackers known as Anonymous has claimed taking over the Syrian government Ministry of Defense website publishing on it a message in support for the Syrian people.

Visitors to the Syrian military department's website have been greeted with the Anonymous logo and images and links to videos of dead protesters hours after activists said on Sunday that security forces backed by tanks killed scores of civilians in the eastern city of Deir al-Zour and the central town of Hula.

Embattled Yemeni President Ali Abdullah Saleh has decided not to return to Yemen due to the U.S. pressure on him, the Pan Arab daily Ashaqr al-Aqsat reported on Monday.

U.S. sources told the daily that Saleh fears to be tried if he returned to Yemen like ousted Egyptian president Hosni Mubarak.

Saudi Arabia recalled its envoy to Syria in a major escalation of international pressure Monday after security forces killed more than 50 people and the regime defended its crackdown on "outlaws."

The shock move by Riyadh, the Middle East's Sunni Muslim heavyweight, followed condemnation by Pope Benedict XVI and the Arab League over the continuing bloodshed.

The U.S. envoy to Syria has returned to monitor the "grotesque" crackdown there, placing himself on a collision course with Damascus, which has imposed strict constraints on diplomats.

Washington on Thursday sent Ambassador Robert Ford back to Syria, where President Bashar al-Assad's troops and tanks have stormed major cities in an effort to suppress a months-long pro-democracy revolt.

Jordan said on Sunday the bloody crackdown on the opposition in Syria is "worrisome," and called for dialogue and reforms to end the crisis in the neighboring country.

"What is happening in Syria now is worrisome, unfortunate and sad," Foreign Minister Nasser Judeh told the state-run Petra news agency in an interview.

Kuwait, which has called for a halt to bloodshed in Syria, said on Sunday it has no plans to expel the Syrian ambassador as demanded by MPs and protesters.

"The Syrian ambassador is here and he will stay in accordance with diplomatic agreements," foreign ministry undersecretary Khaled al-Jarallah told reporters.