Three Thai workers were in a critical condition after being exposed to high-level radiation in the country's worst nuclear accident at a recycling plant in the suburbs of Bangkok. Hundreds of people living near or working at the plant were undergoing blood-tests. Authorities are investigating why a waste-disposal company failed to report the theft of inner parts of a cylinder containing an artificially produced isotope cobalt 60. Media reports said that the vacant block where the cylinder was stored was used by children as a playground. Workers at the scrapyard, which bought the stolen material, did not know why they were gradually becoming sicker over several weeks.

The Bangkok Post reported that it may take time before it was known if Sudjai Jairaew and Niphon Phanthukhan