All eyes on Damascus
Here's what the world is saying about Saturday morning's car bomb in Sayida Zeinab, southern Damascus.
"Seventeen dead in car bomb. This is the kind of headline you'd expect in Iraq, not in Syria." - Hala Gorani, CNN, United States.
"It should be said that no American has been killed by terrorists in Syria throughout the entire history of the country." - Syria Comment, United States and Syria.
"The apartments lining the crowded streets around the mosque are home to hundreds of thousands of Iraqi refugees, many of them poor, unemployed and undocumented. News reports from Syria said the bombing occurred near a state security post. There were conflicting reports as to the nature of the post, with one opposition web site saying it was no more than a car park used by state security services." - Washington Post, United States.
"The security post [near to where the bomb detonated] is not a very important or significant security site; it is for petrol for security patrols. It is very near the Saydah Zeinab shrine. At this time of year during Ramadan, it is very significant. Pilgrims come from Lebanon, Iraq and Iran to visit the shrine. The security post has not been harmed." Al Jazeera, Qatar.
"The blast was the deadliest since a spate of attacks in the 1980s blamed on Muslim Brotherhood militants." - Agence France Press, France.
"The exiled head of Syria's banned opposition Muslim Brotherhood Ali Sadreddine Bayanouni said the attack could be the work of extremist groups or part of a "struggle between security forces. The security agencies have set up terrorist groups and sent them to neighbouring countries like Lebanon and Iraq. I don't rule out that they have slipped from their control and are carrying out such acts." - Agence France Press, France.
"The bombing comes as senior Lebanese military sources told The Observer that jihadis - some based in the Lebanese city of Tripoli - had launched a series of attacks against the Syrian regime of Bashar al-Assad." - The Guardian, Britain.
"In recent years, there have been some reported clashes [with the Muslim Brotherhood], with the security forces killing several suspected Islamist militants, and arresting hundreds more." - BBC, Britain.
"The bombing also occurred less than three months after Islamist inmates rioted at a prison outside the capital, taking hostages and engaging in gun battles with the authorities, in a confrontation that dragged on for weeks." - New York Times, United States.
"The explosion came only hours after Syria's foreign minister held a rare meeting in New York with his American counterpart, Secretary of State Condoleezza Rice." - Associated Press, United States.
"Despite claims from Syrian groups that Israel was behind the bombing, political and security officials in Jerusalem [sic - you mean Tel Aviv?] denied any Israeli involvement." - Haaretz, Israel.
"Unusually for Syria, whose media is closely policed, details of the attack were reported immediately, with rolling updates on the casualties and investigation." - The Guardian, Britain.
Images, top to bottom: AFP, BBC, AP.