Mohammad Arif said he had volunteered his confession and other information mainly because he did not want to create any further work for the police working on the murder case.

In his confession he said he killed the victim, Dissanee Thongnarkthae, by smothering her with a pillow and then strangling her, before dismembering her.

Arif also said that prior to the murder he and Dissanee had had sexual intercourse three times and that Dissanee invited him to go to Pattaya but he refused because of the cost.

Investigators from Hua Mark Police Station also instructed Arif to carry out a re-enactment of his alleged crime. Lt-Colonel Somphob Thunpholngarm said the police investigation into the case would be completed soon.

Arif appeared distressed in the detention facility at the station and occasionally talked with other inmates in Thai. A sergeant on duty said he had asked the Thai inmates to keep a close eye on Arif in case he attempted to hurt himself or commit suicide.

Earlier in the morning a travel bag containing the deceased's left leg and left foot were found floating in a canal near the location where the first bag containing body parts, including both arms and a right leg, were found.

Commenting on the case, Mental Health Department spokesman Thaweesil Wissanuyothin warned women against meeting men via the Internet.