AlQa'dah 1, Aug 16 2015, SPA -- The death toll from massive explosions in China's port of Tianjin has risen to 112 and 95 people, most of them fire fighters, are missing, Reuters quoted state media on Sunday, suggesting the toll will rise significantly. More than 720 people remained in hospital four days after Wednesday's disaster, which sent massive yellow and orange fireballs into the sky, rained burning debris on to a vast industrial zone, crumpled cars and shipping containers, burnt out buildings and shattered windows of nearby apartments. President Xi Jinping on Saturday urged authorities to improve safety and learn lessons paid for with blood. China evacuated residents who had taken refuge in a school near the site of the blasts on Saturday after a change in wind direction prompted fears that toxic chemical particles could be blown inland. It was not clear from media reports how many people were evacuated, but the order came as a fire broke out again at the blast site, a warehouse specially designed to store dangerous chemicals, according to Xinhua. Officials acknowledged the presence of toxins but said they posed no risk to people outside the evacuation zone. -- SPA 10:19 LOCAL TIME 07:19 GMT تغريد