By The Nation
A policeman on duty at the Surin station were alerted at 5.48 am that the man, who appeared to be in his 50s, was killed as the train left the station.
The Bangkok-Ubon Ratchathani train stopped at Surin Station and the accident occurred while it was leaving the station for its destination.
Police said the man has been dragged by the train for about 30 metres before the train was stopped.
The body was sent for an autopsy at Surin Hospital.
The policeman said he had frequently seen the homeless man walking along the tracks.