ISLAMABAD, Nov. 1 (Xinhua) -- At least 10 laborers were killed and over 50 others injured in an explosion during work on a dismantled ship at a shipbreaking yard in Pakistan's southwest Hub district on Tuesday, officials said.

The deputy superintendent police said that the incident happened due to gas welding work at the Gadani ship-breaking yard of Hub, a district located in the country's southwest Balochistan province.

Eyewitness said that flames from the welding fall into the oil tank of the yard, causing fire and explosions

Police said that eight explosions took place at the yard and more are being feared.

Hospital sources said that 10 people were killed, 50 others injured and around 40 saved their lives by jumping off the ship when fire erupted.

The injured people have been shifted to a nearby hospital where several of them are said to be in critical condition.

Police said that fire fighters are trying to extinguish the fire at the yard.

Gadani ship-breaking yard is the world's third largest ship breaking yard. The yard consists of 132 ship-breaking plots located across a 10 km long beachfront at Gadani.