By Suriya Patathayo
As Thai Interpol chief, Apichat said he had sought help from British Interpol to locate Vorayuth so that the Office of the Attorney-General could seek his extradition.
The Interpol Blue Notice will ask 190 member countries to locate, identify or obtain information about a person of interest in a criminal investigation.
Immigration records show Vorayuth left Thailand on April 25 for Singapore, where his private jet reportedly remains. It is believed he left Singapore for another destination on a commercial flight.