Police and local officials said the accident happened at 3.30pm at the factory in Ban Khoi Ngam or Moo 3 village in Tambon Sala Khao of Muang district.
Authorities believe the 23 workers were assembling the fireworks when suddenly there was an explosion, flattening the factory and killing all of them.
Local villagers said the factory normally had about 30 people working inside but on Wednesday it was believed 23 workers were inside.
Credit: http://nationthailand.com
