http://www.bbc.com/news/world-middle-east-32299602

Islamic State (IS) has lost more than a quarter of its territory in Iraq since the US-led coalition air campaign began in August, a Pentagon spokesman says.

Col Steve Warren said it was too early to say the tide was turning, but that air strikes and Iraqi ground forces had "unquestionably inflicted some damage".

IS took over swathes of Iraq and Syria last June.

The announcement came ahead of talks between Iraq's prime minister and US President Barack Obama in Washington.

Iraqi PM Haider al-Abadi wants the coalition to step up its air campaign against IS.