An Islamic State militant announces to residents of Taqba city that the airbase has fallen to IS
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IS fighters seize Syria airbase

Fighters from Islamic State (IS) have taken control of a key Syrian government airbase, activists say.

The Tabqa airbase was the last remaining stronghold of Bashar al-Assad's government in Raqqa province.

State TV confirmed that government forces had evacuated the airbase.

Days of fighting there have reportedly killed hundreds on both sides, as Jim Muir reports.