Washington: US has said it will judge the Assad regime in Syria on their actions and not on comments and alleged that the Syrian government had so far failed to take necessary steps in implementing the commitment made to UN-Arab League envoy Kofi Annan.

"We've heard promises from the Assad regime before. We will judge the Assad regime on their actions, not on their comments," White House Deputy Press Secretary Josh Earnest told reporters.

At another news conference, the State Department said it has not seen any change in the attitude of the Assad regime.

"We have seen arrests and violence continuing on Thursday across Syria, from Daraa to Hama, so it is clear that the Assad regime has not yet taken the necessary steps to implement the commitment made to Kofi Annan," State Department spokesperson Victoria Nuland said.

"The joint special envoy is continuing his work; his technical team continues its work in Syria. We will have the Friends of the Syrian People meeting this weekend, and I understand that Kofi Annan will also be making a report to the Security Council on Monday.

"So it's incumbent on all of us to keep the pressure on Assad to meet the commitment that he's made, and that's our intention over the next few days," she said.

On Tuesday, a spokesperson for Annan had said the Syrian government had accepted his plan that includes proposals for a cease-fire by the regime, halt in fighting for the delivery of aid and treatment for the injured and talks with the opposition. Nuland said it hasn't been easy because of all of the "roadblocks" the regime has put up so that it's very difficult for those outside Syria and those inside Syria to communicate, to work together.

"Even within Syria, it's very difficult for groups to work together and come together, and then the additional fact that it's been a political-free zone for 42 years, so it's not surprising that this is difficult, time-consuming work," Nuland said.