The police deputy commissioner-general, Pol General Srivara Ransibrahmanakul, set up a committee on Monday to investigate officers at the Sadao district immigration office in Songkhla following the escape of 20 Uighur inmates.
Srivara said the officers in charge of the detention centre had to face an investigation because they had erred in their duty. He said he would consult with the Immigration Bureau chief to consider whether any of the officers should be transferred.
A total of 25 Uighurs were detained at the office, but 20 of them escaped at 2am on Monday.
Srivara said he was informed that the Uighurs used equipment found the detention room to break a hole in the wall.
He said he had instructed the Immigration Bureau to coordinate with Provincial Police Bureau 9 to try to hunt down the escaping Uighurs.