A team of UN-led experts is on standby waiting for the go-ahead to investigate allegations of chemical weapons attacks in Syria, according to Reuters.
The mission is thought to have been held up by how to keep them safe as forensic evidence from a soil sample has been discovered for the first time.
Syria has asked for the team to investigate what it says was a poison attack by rebels in the northern city of Aleppo last month.
But Damascus has rejected demands by the opposition that the inspectors also be sent to investigate other locations where rebels say government forces used chemical munitions.
A soil sample smuggled out of the Syria in a secret British operation has for the first time revealed forensic evidence of chemical weapons used the country, it has been reported.
Unnamed defence sources told The Times (£) of conclusive proof that “some kind of chemical weapon” had been fired in Syria.
It is understood this had been established by scientists working for the the Ministry of Defence’s chemical and biological research establishment at Porton Down in Wiltshire.