The father of an Uthen Thawai University first-year student says he'll seek the prosecution of those responsible for his son's death in a hazing on Monday.

Prachern Chatsuwan says he'll demand the criminal prosecution of both the seniors and university management.

Prachern says his wife earlier rejected criminal action because she was distraught and in shock.

Post mortems say Krissana Chatsuwan died from a blow to the head during an initiation event in Prachuap Khiri Khan.

There will be an investigation of the Monday death, the culpability of senior students and management of hazing activities by the university.

Prachuap Khiri Khan police deputy commander Colonel ThIwa Boondamnoen says police are finding out who was involved.

He adds there were no teachers at the event and witness have not been able to provide much information.