Video footage shows the moment a fireball ripped through the night sky in China.<br /><br /> The massive explosion erupted in an industrial area in the northeastern city of Tianjin.<br /><br /> State TV said the blast erupted in a shipment of explosives around 11.30pm local time. The State news agency reported that the fire was under control, but two firefighters were reported missing.<br /><br /> The blast wave could be felt several kilometres away and injured at least 50 people according to local media.<br /><br /> The cause of the explosion is not yet clear.<br /><br /> Video captures massive explosion in Northern China’s Tianjin; cause unclear. Follow updates: http://t.co/v4EJaOC1d4<br />http://t.co/wN8YYdO07f— Breaking News (@BreakingNews) August 12, 2015<br /><br /> Update:#Tianjin explosion reportedly caused by inflammables & explosives at container terminal, hundreds hospitalized pic.twitter.com/c2BUYhkrE1— China Xinhua News (@XHNews) August 12, 2015
