Five Hong Kong-based activists were held for two hours yesterday when they attempted to enter Shenzhen to protest against the trial of Wang Bingzhang. The five, including China Democracy Party member Lau Shan-ching and April Fifth Action Group leaders 'Long Hair' Leung Kwok-hung and Ng Kwok-hung, had planned to protest outside the court. But they were barred from entering Shenzhen because they did not possess the necessary travel documents. They were held for about two hours before they were allowed to return to Hong Kong. Mr Lau said they were stopped by more than 10 Public Security officers on the Lowu Bridge. The group said they wanted to protest against Wang's trial because they believed the US-based activist had been framed. Mr Lau said Shenzhen police took away their demonstration banners.