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Four workers are killed while inspecting sewage pipes after falling into a manhole filled with hydrogen

Attacks in Russia during the Russian invasion of Ukraine — Four workers are killed while inspecting sewage pipes after falling into a manhole filled with hydrogen sulfide in Gyōda, Saitama Prefecture, Japan. [https://www.dw.com/en/japan-fo

Published August 3, 2025· Updated October 28, 2026·1 min read

Image: Wikimedia Commons — Public domain — by CCTV camera. Images shown are not owned by Orubus, Oseen or any of its related companies — all rights remain with the stated owners and licensors.

Context: Attacks in Russia during the Russian invasion of Ukraine.

Four workers are killed while inspecting sewage pipes after falling into a manhole filled with hydrogen sulfide in Gyōda, Saitama Prefecture, Japan. [https://www.dw.com/en/japan-four-workers-dead-after-falling-into-manhole/a-73511583 (DW)]

Event summary via Wikipedia Current Events (2025-08-03).