Staff writer

In an effort to strengthen bilateral economic ties and other relations, Mongolian President Natsagiin Bagabandi is expected to visit Japan May 11-15, his first trip here since he took office early last summer, Foreign Ministry sources said Friday.

However, the sources said the date for the Mongolian leader's trip to Japan -- the landlocked Asian country's largest single aid donor -- has yet to be finalized through diplomatic channels between the two countries.