Shukri said senior IS commanders were taking refuge in Libya, under pressure from international airstrikes in Iraq and Syria.

Replacement inflators will be sent to high-humidity areas along the U.S. Gulf Coast first, then to the rest of the country.

Staffan de Mistura announced a three-week pause in the Geneva talks, the first attempt to negotiate an end to the war.

In a statement on Twitter, WikiLeaks founder said he would accept there was "no meaningful prospect of further appeal".