Welding tank explosion thought to be cause
Four workers were killed and 10 others injured Wednesday, June 1, northeast of Seoul, South Korea, when a subway construction site in Namyangju, collapsed due to what is believed to be a gas explosion.
The victims were trapped under debris 49 feet underground and were transported to nearby hospitals for treatment, according to authorities.
The accident happened around 7:30 a.m., when 17 workers were on duty. One victim died after being thrown by the explosion. The three others were found dead under the collapsed construction site.
A witness said there was a huge blast, but the police said they believe explosives were not being used at the time of the collapse. An official from the Namyangju fire department said a gas tank used for the welding operations might have exploded.
POSCO E&C, the construction unit of the world's fourth-largest steelmaker, was in charge of the construction site.
Source: The Star Online
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