Rescue workers were trying to reach three people trapped inside a high-speed railway tunnel that collapsed in Nakhon Ratchasima's Pak Chong district during construction on Saturday night.
The tunnel collapsed in tambon Chan Thuek at 11.30pm on Saturday while two workers were operating a backhoe and a truck to dig the tunnel. A foreman who had just arrived in a car was the third person trapped in the tunnel. There was no rain at the time of the collapse.
