Security forces in Syria shot dead at least 46 people in operations across the country on Friday, the Syrian Revolution General Commission said.

In the central city of Homs, two demonstrators were shot dead by security forces when several thousand people gathered to protest, activists said.

Turkish Prime Minister Recep Tayyip Erdogan arrived in the Libyan capital on Friday on the final leg of his "Arab Spring" tour, an Agence France Presse photographer said.

Erdogan arrived from Tunisia at Tripoli's airport, where he was greeted by Mustafa Abdel Jalil, number two in the new ruling National Transitional Council (NTC), whose forces last month toppled despot Moammar Gadhafi.

Turkey has warned Iran "not to spoil" the Syrian leadership whose security forces have been cracking down on protesters since mid-March, a Turkish daily quoted Prime Minister Recep Tayyip Erdogan as saying Friday.

Erdogan told the daily Hurriyet, "I cannot say there has been tension with Iran but we warned them (the Iranians) that 'the Assad administration is getting spoiled with your encouragement.'"

Israeli officials fear the Palestinians may launch legal action against Jewish settlements in the West Bank if their bid for upgraded United Nations status is successful, a media report said on Friday.

The daily Haaretz reported that Prime Minister Benjamin Netanyahu had on Thursday told EU and U.S. envoys of his concerns about a possible Palestinian recourse to the International Criminal Court in The Hague on the settlers issue.

Forces of Libya's new leadership were regrouping on Friday ahead of the expected final battle for the hometown of fugitive fallen strongman Moammar Gadhafi, after suffering heavy casualties.

An Agence France Presse correspondent at Hassan, some 60 kilometers (35 miles) west of the coastal city, one of Gadhafi's holdout strongholds, said National Transitional Council (NTC) forces were preparing there for the final assault on Sirte.

The United States on Thursday urged Americans to make immediate plans to leave Syria, which has been wracked by anti-regime protests for months, warning anti-foreigner sentiment is mounting.

"The U.S. Department of State urges U.S. citizens in Syria to depart immediately while commercial transportation is available," the State Department said in an updated travel warning.

Members of the European Parliament called Thursday for the immediate departure of Syrian President Bashar al-Assad who, by choosing repression instead of reforms, they said had lost all legitimacy.

In a resolution adopted in Strasbourg, the parliament called on Assad and his regime to "relinquish power immediately."

U.N. leader Ban Ki-moon called Thursday for "coherent" new international action over the deadly crackdown on opposition protests by Syria's President Bashar al-Assad.

"When he has not been keeping his promises, enough is enough and the international community should really take coherent measures and speak in one voice," the U.N. secretary general told a press conference.

Egypt's Prime Minister Essam Sharaf said on Thursday that the 1979 peace treaty with Israel "is not sacred," state-run MENA news agency reported, quoting remarks he made in an interview with Turkish television.

"The Camp David treaty is always open to discussion or for modification if that is beneficial for the region and for a just peace. The peace treaty is not something sacred and there can be changes made to it," MENA quoted Sharaf as saying.

Fighters loyal to Libya's new rulers were inside Sirte, the country's military said on Thursday, after a massive convoy of its forces launched a bid to take Moammar Gadhafi’s hometown.

"Misrata's thwar (fighters) arrived at the al-Gharbiyat Bridge inside Sirte," the Misrata Military Council said in a statement.