U.S. officials have welcomed Syria's pledge to pull its troops from Lebanon but say Damascus has to follow through on the plan.
In an interview with ABC television's "This Week" program (Sunday), Secretary of State Condoleezza Rice said Washington sees "positive elements" in the Syrian pledge.
She said it was "very important" that Syria has agreed to remove its intelligence agents along with its troops.
But she said the United States will keep pressing Syria to fully comply with a U.N. resolution that calls for all foreign forces to leave Lebanon.
In an interview with the "Fox News Sunday" program, President Bush's National Security Adviser Stephen Hadley said the Syrian withdrawal must be completed as soon as possible so Lebanon can have fair and free elections.