Claim made by UK-based group; Syria admits 'significant damage' at airport, main runway out of use, all flights suspended; Syrian state television says repair work started
Russia condemns 'vicious, provocative' attack; both runways in Syrian capital hit three times; Israel has accused Iran of using civilian flights to transfer weapons to Hezbollah
Attack on May 20 that hit the Damascus International Airport damaged runways, satellite imagery shows, reportedly keeping Iran from landing Boeing 747 cargo planes