A United Nations advance team visited Monday the restive area of Zabadani, on the outskirts of the capital Damascus, the spokesman of the UN observers team in Syria, Neeraj Singh, told dpa.
"The observers are continuing Monday their mission by visiting various regions," said Singh.
He added that more observers will be arriving in Syria later Monday and "more will join the mission in the coming few days" to observe a ceasefire plan by international envoy Kofi Annan.