(ATTN: UPDATES with number of deaths; AMENDS headline)
DAEGU, June 27 (Yonhap) -- Two workers died of asphyxiation and two were critically injured on Saturday while cleaning inside a manhole in the southeastern South Korean city of Daegu, fire officials said.
The accident happened at a recycling center in Daegu, 300 kilometers southeast of Seoul, at 5:42 p.m.
Two workers, who suffered cardiac arrest, died while being treated at a hospital. Another two workers nearly lost consciousness after they suffered asphyxiation, fire officials said.
Police were investigating the cause of the accident.
Fresh tensions brewing in Seoul-Tokyo ties over court procedure to sell off Japanese assets
Reform committee's recommendations to diffuse chief prosecutor's power draw backlash
After six months, pandemic accelerates arrival of contactless future in S. Korea
1 year after workplace anti-bullying law took effect, challenges remain
N.K. seeks to distract from domestic hardships with liaison office demolition: experts