A man who is suspected of ordering disposal of the bodies of a Tokyo couple has said that he was given instructions by another person, investigative sources said Tuesday.

The man, Hikaru Sasaki, 28, was arrested Sunday for his alleged involvement in the torching of the bodies of Ryutaro Takarajima, 55, and his wife, Sachiko, 56, which were found burned near a river in the town of Nasu, Tochigi Prefecture, two weeks ago.

A joint investigation team of Tokyo's Metropolitan Police Department and the Tochigi prefectural police turned over Sasaki, whose occupation is unknown, to public prosecutors Tuesday. The police are investigating whether another figure gave orders to Sasaki.