The US has strongly condemned Syria’s “outrageous use of violence” against anti-government protesters.
The White House said the government was leading Syria down a “dangerous path” and called for “an immediate end to the brutality and violence”.
Activists say at least 32 people were killed in fresh clashes on Friday.
The violence came as government forces moved into the town of Jisr al-Shughour, where it said 120 security personnel had earlier been killed.
Hundreds of civilians have fled north into Turkey to escape the assault.
