Firefighter Thai Ngo Hieu has been hailed a hero after he saved the lives of four people drowning in waters off Ba Ria in Vietnam's Vung Tau province on April 9.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline
