"We are observing the violations through a military commission and a network of observers. We await the results of the ceasefire to make a decision on participation in talks on March 7 in Geneva," Agha said in a telephone conversation.
The committee expressed hopes for a successful and lasting truce.
The HNC, which was created in Saudi Arabia in December and includes representatives of some groups considered to be terrorist organizations by Syria and Russia, is one of the opposition delegations participating in the UN-brokered talks on the Syrian settlement.
On February 22, Russia and the United States reached an agreement on the ceasefire in Syria. The ceasefire took effect at midnight on February 27, Damascus time. It does not apply to terrorist groups operating in the country.
The UN Security Council unanimously adopted Resolution 2268 endorsing the Russia-US agreement on the cessation of hostilities in Syria on Friday, shortly before the ceasefire came into force.
