Police immediately sent five fire trucks to the spot after receiving a report about the blaze at 10am. However, the fire was so strong that at press time relevant officials were still unable to put it out.
Several local administrative bodies jointly operate the dump. But sources said waste disposal at the site was not in line with proper standards.
Last month, it took officials from several agencies plus many volunteers more than one week to extinguish a fire that erupted at a big dumpsite in Samut Prakan.
That dumpsite fire spread toxic smoke across several districts of Samut Prakan as well as its neighbouring Bangkok for days.