
Pol Maj-General Boonyarit Rodma, commander of Metropolitan Police Division 7, held a press conference at 3am to announce the arrests.
Boonyakiart said the Metropolitan Police Bureau dispatched 400 policemen to set up road checkpoints at various spots in Bangkok from late Friday night to early Saturday and stopped and checked motorcycles of teenagers.
The 72 motorcycles were found to have been illegally modified apparently for road racing. The riders and the pillion riders were arrested.
One of the arrested teens was found to have seven methamphetamine pills and three others tested positive for drug use.
Boonyakiart said police also arrested four persons for opening Facebook pages for organising road races. They were identified as Davuth Abdulrohim, 20, Anucha Kulwong, 20, Book (not real name), 17, and Thanawat Kulwong, 20.