Chemical weapons experts are due to arrive in Douma to probe an alleged poison gas attack, Russian officials say, as the US voiced fears Moscow may already have "tampered with" evidence at the site.
Russian Foreign Minister Sergei Lavrov denies that Moscow was interfering with evidence of a suspected chemical weapons attack in Syria after Britain said international inspectors were not being allowed into the site in Douma.
Pope Francis condemns the use of chemical weapons in Syria after a suspected attack in an opposition holdout in Eastern Ghouta killed dozens of people.
Chemical weapons experts are due to arrive in Douma to probe an alleged poison gas attack, Russian officials say, as the US voiced fears Moscow may already have "tampered with" evidence at the site.
Russian Foreign Minister Sergei Lavrov denies that Moscow was interfering with evidence of a suspected chemical weapons attack in Syria after Britain said international inspectors were not being allowed into the site in Douma.
Pope Francis condemns the use of chemical weapons in Syria after a suspected attack in an opposition holdout in Eastern Ghouta killed dozens of people.