Hundreds of people in Iraq are being treated for the effects of toxic gases after a sulphur plant was set alight in fighting with so-called Islamic State. The US military says IS fighters set the plant on fire earlier this week, as they fled an advance by pro-government forces on their Mosul stronghold. On Saturday, US soldiers at a base near Mosul donned protective masks as wind blew smoke towards them. Reuters said another 1,000 people were being treated for breathing problems. Read more http://www.bbc.com/news/world-middle-east-37738667
