A travel bag containing the body of a tattooed woman of unknown nationality was found washed ashore in Si Racha district of Chon Buri on Friday.
The woman, aged around 30, was found at Bang Phra beach, according to the 191 police radio centre in Chon Buri, which was alerted at around 6.30 pm on Friday.
Pol Lt Col Kirksil Buracharoen, deputy superintendent for investigation affairs at Si Racha police station, led police, forensic officials, hospital doctors, and rescue workers to investigate.
The woman, whose wrists and ankles were bound by a black cable tie and a green cord respectively, was brutally killed, said police.
Her head was wrapped in yellow duct tapes and covered by a black plastic bag.
The body was stuffed in a red-black Rip Curl-brand travel bag, which did not entirely cover her back when it was found.
Wearing a camouflage shirt, black shorts, and Asics-brand white running shoes, the woman was about 160-165cm. There were red tattoos on her left shoulder and black ones on her inner right ankle.
Police found her belly was round, suggesting a pregnancy. No identification documents were found on the body.
A doctor believed she had died at least two days before the body was found.
Forensic officials collected evidence and fingerprints to establish the dead woman’s nationality.
Her body was sent to the Institute of Forensic Medicine for a post-mortem examination.
Police will investigate the cause of death and those involved in the case.