This is the moment a petrol station in Vietnam explodes in a colossal fireball, leaving one person dead. <br /><br />Footage captured on Thursday (May 10) in Hanoi shows the blaze at a petrol station which engulfed surrounding houses. <br /><br />After burning slowly for several seconds, the massive blaze flares up, sending smoke billowing into the air. <br /><br />Witnesses report hearing loud explosions before the fire. <br /><br />Six people from a nearby home that caught fire escaped, but one person is believed to have died. The survivors' conditions are unknown.<br /><br />The fire was taken under control after burning for an hour, according to reports.