Damascus will allow a UN team of chemical weapons investigators to examine a suburb of Damascus where an alleged chemical weapons attack took place late last week.
The Syrian foreign ministry broadcast a statement on state television announcing their decision to allow the UN team access to "investigate allegations of chemical weapons use in Damascus province", according to BBC.
The government statement added that the decision was approved following the conclusion of discussions with UN disarmament chief Angela Kane.
The UN chemical weapons team, already in Syria investigating previous allegations of chemical weapons use, is to begin their work on Monday, BBC reported.
Syrian activists report that between 500 and 1,300 people died when poisonous nerve gas was dropped on a residential rebel-held suburbs of Damascus early on Wednesday morning.
Earlier on Sunday, a US official accused Damascus of "indiscriminate use of chemical weapons", BBC reported. He said the delay in Damascus giving the UN team permission to examine the chemical weapons site was meant to allow evidence to degrade.
State media on Saturday reported that chemical agents had been found in the underground tunnel system used by rebel fighters, and that government soldiers "suffered from cases of suffocation" when rebels used poison gas "as a last resort" after government forces made "big gains" in the suburb of Jobar.