Police in Chonburi said a 69-year-old American man identified as Walsh was found dead under unusual circumstances inside his locked hotel room on Dec. 1.

Officers discovered his body in the bathroom with a plastic bag over his head and his hands cuffed behind his back; there were no signs of a struggle in the room, investigators said, Khaosod English newspaper reported.

Hotel security footage showed the man checking in alone at 4:14 p.m. after parking his pickup truck in the rear lot.

CCTV cameras on the sixth floor where his room was located, were not working at the time, police added.

Forensic officers collected fingerprints from the room, the handcuffs and the plastic bag.

The body was sent to the Police General Hospital’s forensic institute for an autopsy to determine the cause of death.

The investigation is ongoing.

In Phuket, police said a 62-year-old Austrian tourist collapsed and died early Tuesday in his hotel room in the Karon area, The Tiger reported.

The man had been staying at the hotel with his wife since Nov. 21 and was due to check out on Dec. 6.

His wife told police they had dinner in Kata the night before and that he had appeared healthy.

She said he stayed up drinking beer and smoking while she went to bed.