The dismembered body parts of a man have been found in a freezer in a rented room in Bangkok's Bang Khunthian district.

Police and rescue workers found a white freezer on the fourth floor of the building. Inside were a man's legs. There were bloodstains in the room and a bathroom, and a chain saw was found under a bed.

At the scene, a Myanmar man said he and four compatriots visited the building last week. An Indian man used the building as a job placement office, he said.

Four of them were later brought to work elsewhere, the Myanmar man continued. The other one – identified only as Yao – remained at the building, and friends lost contact with him on Saturday.

The Myanmar national returned to the building on Sunday. He phoned the owner of the building, who told him to break into the property. It was then that he made the gruesome discovery and called police.

Police said later on Sunday that the Indian had rented the building on Jan 13 and the five Myanmar migrants had stayed there to wait for jobs.

Police said there were signs of a struggle, and that the Indian national left the country for Chennai at 8.50pm on Saturday.