One or more senior Dutch lawmakers could face prosecution for abuse of office after prosecutors said it was possible they leaked confidential information to a newspaper.

A committee led by the speaker of Parliament's lower house was meeting Thursday morning to discuss the highly unusual case after prosecutors said they could take the matter no further because of the possible involvement of lawmakers.

The lawmakers involved have not been named.

The case revolves around a suspected leak of information from closed meetings of Parliament's Intelligence and Security Services Committee in 2013 and 2014 that reportedly discussed Dutch agencies sharing telephone data with the U.S. National Security Agency.

Members of the committee are banned from publicizing information they hear during their meetings.