Officials from the Office of the Consumer Protection Board led police to search the night market along the Ram-Indra expressway following tips-off that vaporizers and the accompanying liquids were on sale.

The officials seized 88 vaporizers, 541 bottles of e-cigarette liquid and 121 other items for use with vaping.

The four suspects were identified as Netnapha Onta, 28, Anan Dokmasang, 25, Chana Lekhasak, 48 and Thanakrit Chuenrung, 19.