At least six people have died and 200 are trapped after a massive oil tanker exploded in Pakistan. The blast triggered a massive fire that engulfed the area, leaving hundreds trapped inside the ship-breaking yard. Unconfirmed reports claim up to 10 people could have been killed by the explosion. Around 70 of those trapped inside are thought have been injured, with many suffering serious burns. "Over 200 workers are trapped inside the shipbreaking yard engulfed by flames," Deputy General Secretary of the National Trade Union Federation Nasir Mansoor said. It is thought the fire broke out in a dismantled oil tanker stationed in the yard, according to DawnNews.