Islamic State says US-led airstrikes have weakened Tabqa dam on Euphrates river, 25 miles from its self-styled capital in Syria
Associated Press in Beirut
Sunday 26 March 2017 13.58 BST
Jihan Sheikh Ahmed of the Syrian Democratic Forces, which are closing in on Raqqa, gives a press conference.
Photograph: Rodi Said/Reuters
https://www.theguardian.com/world/2017/mar/26/isis-islamic-state-raqqa-residents-evacuate-tabqa-dam-collapse-fears