Several female employees at Cool Japan Fund Inc., a public-private investment fund aimed at promoting Japanese culture and products overseas, claim they were sexually harassed by executives of the entity, including a career bureaucrat on loan from the central government, sources said Monday.

Since the incidents, employees of the Tokyo-based fund have formed a labor union and are calling for information disclosure and steps to prevent similar cases, claiming the entity's handling of the alleged harassment cases is unsatisfactory.

In July last year, a male executive in charge of the investment section who hailed from the private sector organized a socializing event at a karaoke pub in Tokyo in which four female employees and a male connected to the fund also participated, according to the sources.