The partially naked body of Sriprapha Kosin, 25, was discovered in her apartment in Pranburi district on Wednesday.

Pol Maj General Prasert Siripannapirat, the province’s acting police chief, said on Thursday the murder might have stemmed from a personal relationship gone wrong, noting that Sriprapha was “attractive” and had many admirers.

He added, though, that robbery had not been ruled out as a motive because the victim’s gold necklace, gold bracelet, mobile phone and motorcycle were missing.

Police have issued a summons for a man who was her boyfriend until about a month ago and had been seen visiting her at her restaurant more recently, Prasert said.

One of the victim’s relatives is also regarded as a person of interest, he said.

CCTV surveillance footage between the victim’s home and workplace is being examined and the results of an autopsy are awaited to determine whether she’d been raped.

Neighbouring tenants told police they’d seen Sriprapha on Sunday afternoon arriving home on the back of a motorcycle driven by a man. They could not see his face because he was wearing a medical mask.