Iran's supreme leader Ayatollah Ali Khamenei warned the US on Wednesday not to attack Syria.
"The US intervention will be a disaster for the region," Khamenei said as he spoke with the cabinet of Iranian President Hassan Rowhani, state television reported.
"The region is like a gunpowder storage depot. (Its) future cannot be predicted" in case of a military strike against Syria, he added.
Meanwhile, Iranian Foreign Ministry spokesman Abbas Araqchi rejected reports that Syrian President Bashar al-Assad had flown in to Iran as an “amusing joke.”
Araqchi told the official news agency IRNA that the news is false and was “mostly like[ly] a funny joke made up by the Zionists.”
Britain drafts UN resolution
The United Kingdom has drafted a resolution concerning a possible strike on Syria which will be discussed at a meeting Wednesday with representatives of the five permanent members of the United Nations Security Council. The resolution would contain wording "authorizing necessary measures to protect civilians."
BBC News reported that the information was posted by UK Prime Minister David Cameron via Twitter.
Meanwhile, a squad of UN weapons inspectors continued investigations into the alleged chemical weapons attack that killed hundreds of people on August 21. The investigation had been suspended after investigators were shot at near Damascus by unidentified snipers on Monday.
A spokesperson for UN Secretary General Ban Ki-moon announced that the inspectors were to “conduct on-site fact-finding activities” following Ban Ki-moon's appeal to the council to take action.
"The body interested with maintaining international peace and security cannot be 'missing in action'," said the Secretary General. "The council must at last find the unity to act. It must use its authority for peace," he added.
British Prime Minister David Cameron said in a separate message regarding the council that, "we've always said we want the UN Security Council to live up to its responsibilities on Syria. Today they have an opportunity to do that.”
The draft resolution that the UK will put forward would condemn the "chemical weapons attack by Assad", he added.
Russia and China have previously prevented resolutions critical of Syria and plan to block any text deemed to authorize military action.
The Russian Foreign Ministry called upon the international community to make sure that their investigation into the use of chemical weapons by Syria be carried out in a fair and professional manner.
Russia, China and Iran have previously warned against launching an attack on the war-ravaged country, where more than 100,000 people are thought to have died in two years of fighting.