Syrian Foreign Minister Walid Moallem says Damascus needs assurances that any fact- finding mission into Idlib chemical attack would be impartial.
Addressing a news conference in Damascus today, he said Syria's experience with past missions is not encouraging.
Seventy-two people were killed in the suspected chemical attack in Idlib the previous day.
Meanwhile, Syrian President Bashar al-Assad said there is no option except victory in the country's civil war.
In an interview, he said government could not reach results with opposition groups that attended recent peace talks.
He also reiterated his rejection of federalism sought by Kurdish groups in northern Syria.
Source: Radio Pakistan