Air and land attacks by Syrian and allied forces continue in parts of Syria where the government says the groups are present. ISIS has reportedly used mustard gas in an attack on a military airport in Syria's eastern province of Deir Zor. The neighbourhoods surrounding the airport are under ISIS’ control, and the facility has been attacked repeatedly by the group. Deir Zor borders Iraq, and control of the province gives ISIS a link between its de facto capital, Raqqa and its forces across the border. In recent weeks, Syrian government troops have also launched attacks against rebel groups fighting to topple President Bashar al-Assad. It is unclear how many casualties were sustained in the attack.
ISIS has reportedly used mustard gas in an attack on a military airport in Syria's eastern province of Deir Zor. The neighbourhoods surrounding the airport are under ISIS’ control, and the facility has been attacked repeatedly by the group. Deir Zor borders Iraq, and control of the province gives ISIS a link between its de facto capital, Raqqa and its forces across the border. In recent weeks, Syrian government troops have also launched attacks against rebel groups fighting to topple President Bashar al-Assad. It is unclear how many casualties were sustained in the attack.