4 workers die after falling in manhole during pipe checks near Tokyo

Four workers died after falling into a manhole Saturday during a sewage pipe inspection in Saitama Prefecture, north of Tokyo, police said.With hydrogen sulfide -- a highly toxic, colorless gas -- detected around the accident site, police are investigating whether the gas was connected to the fatal incident.Authorities received an emergency call at around 9:25 a.m. after one man apparently fell into the manhole in Gyoda, followed by the other three who tried to rescue him.The four men, believed to be in their 50s, did not respond to calls after falling into the manhole, measuring about 60 c…READ FULL ARTICLE