A Japanese man in Mongolia who was a Japan International Cooperation Agency volunteer was apparently murdered Wednesday in his home in Ulan Bator.

The body of Shin Kawasaki, 69, of Tokyo, was found in a water-filled bathtub with his legs tied together, and his home had been ransacked, sources said. He lived alone.

Police are investigating the case as a robbery-murder. A JICA official found Kawasaki's body at his home Wednesday morning, after Kawasaki did not turn up to a meeting with a public broadcasting station Tuesday night, the agency said.

A former freelance broadcast script writer, Kawasaki was sent to Mongolia in October 2005 on a two-year contract to help the national public broadcaster with programming.