Two unlicensed schools were raided in Samut Sakhon province on Thursday, uncovering more than 900 migrant students and teachers.
The operation, involving police, education and administrative officials, targeted two school buildings in Krathum Baen district.
One of the locations was a three-storey building in tambon Tha Mai. Although its licence had been revoked, it reportedly continued operating, providing education to 900 migrant children and employing 27 migrants as staff.
The Thai national in charge claimed it was a youth camp with an approved licence, but officials confirmed the site was unapproved for education or camp activities.
It was also noted that the 27 staff members held blue-collar labour permits which did not allow them to teach.
Provincial deputy governor Pol Lt Col Khetrat Chansin said on Friday that the migrant children will be transferred to authorised educational institutions, and those operating the illegal camp will face legal action.
According to estimates from 2021-2022, Samut Sakhon was home to about 660,000 migrant workers, with around 60% listed as undocumented. Of these migrant workers, approximately 400,000 came from Myanmar.