The Rohingya youths were unable to present documents to police who were checking papers of train passengers. The five males and two females claimed to be from Bangladesh and said they were passing through Thailand in a bid to reach Malaysia where they would stay with relatives.
Police are checking their travel route, which they believe may involve crossing a natural borderline between Myanmar and the western province of Kanchanaburi before boarding a train in Nakhon Pathom to continue their journey.
The youth have been charged with illegal entry to the Kingdom, said Krissana.