CCTV reported. Shockwaves from the blast, which sent a mushroom cloud into the night sky, were felt up to 10 kilometers away. Local media said the blast occurred at an oil storage facility at the city’s Binhai New Development Zone.Chinese President Xi Jinping and Premier Li Keqiang has urged all-out efforts to minimize casualties. This video shows the blast. Credit: Weibo/5671001999 (滚烫白开水)">