Despite some substantial attempts by the Vietnamese government to improve its international image and ease restrictions on religious freedom, the cases of dissident religious leaders' persecution has not stopped in the recent years. The general secretary of the Mennonite Church in Vietnam and religious freedom advocate Nguyen Hong Quang was arrested in 2004, and his house razed to the ground. Christian Montagnards and their house churches continue to suffer from state control and restrictions. In March, 2007, a member of the main Hanoi congregation of the legally recognized Evangelical Church of Vietnam (North) Nguyen Van Dai was arrested for accusations relating to his defense of religious freedom, including disseminating alleged "infractions" of religious liberty.