On 5 May 2013, security forces in northern Vietnam surrounded the pagoda of a banned Buddhist group over the weekend and barred monks from leaving the monastery, in the latest crackdown on the group in the one-party communist state. Some 50 security personnel including police and plainclothes agents surrounded the pagoda on Sunday, the Paris-based UBCV-affiliated International Buddhist Information Bureau rights group said in a statement Tuesday. That morning, the head of the pagoda Thich Vien Hy and UBCV deputy leader Thich Vien Dinh were pushed back inside by a "gang" of plainclothes agents who surrounded their car when they tried to leave the monastery.Security agents refused to provide a police warrant or explanation for why the monks were not allowed to leave, except to say they had "orders from above."