A Chiang Rai tunnel collapse at a railway construction site on Saturday, June 20, left two workers dead and two others injured. The incident occurred at around 6.45pm inside Doi Luang Tunnel in Chok Chai subdistrict, Doi Luang district, Chiang Rai. The tunnel is currently under construction as part of the Den Chai-Chiang Rai-Chiang Khong …
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