The Tokyo Metropolitan Government's Education Bureau has halted an independent survey of how junior high and high schools cater to sexual minorities, citing problems with some of the questions.

The organizers, a group calling itself Respect Life: White Ribbon Campaign, mailed questionnaires to staff at 877 schools in Tokyo in January, asking them to reply anonymously.

The schools included public junior high and high schools, as well as special-needs establishments and academies specializing in six-year secondary education.