The train 721 SRT 4527 + 17 BCF KTMB derail near Ron Phibun Tunnel.
GE CM22-7i no. 4558 was hauling the rapid train no. 174 from Nakhon Si Thammarat to Bangkok. It was departing at Nabon station.
Alsthom AD24C no. 4116 propelled the express train no. 86 from Nakhon Si Thammarat to Bangkok.