US claims 'chemical weapons activity' at Syria airbase
Allegations came as Syria's president, Bashar al-Assad, paid visit to Russian airbase in Latakia

Assad sits inside a Sukhoi Su-27 during his visit to the Hmeimim military base on 27 June (AFP)
Published date: 27 June 2017 18:54 BST
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Last update: 7 years 10 months ago