Thai Prime Minister Prayut Chan-o-cha has ordered local authorities to eliminate all migrant detention camps within 10 days.
The move came after the discovery of 30 more migrant graves at abandoned jungle camps in Songkhla on Thursday morning.
Authorities concerned would face punishment if illegal human-trafficking detention places and activities are still found after that time frame, The Bankok Post quoted deputy government spokesman Sansern Kaewkamnerd as saying.
"Local authorities are required to report to the government via the Provincial Administration Department chief if they find any state official involved and cannot deal with the problem," said Maj Gen Sansern.
Earlier on Wednesday, dozens of southern police officers were transferred for the sake of an investigation into human trafficking in the region.
On May 2, police exhumed 26 bodies from a mass grave in the Sadao district in Songkhla province. All are believed to be migrants from Myanmar and Bangladesh.
