The UK is “deeply concerned” over the fate of 12 Hong Kong pro-democracy activists who were secretly put on trial in China’s Shenzhen city, Foreign Secretary Dominic Raab said on Monday. “We are deeply concerned that members of the Shenzhen 12 were tried in secret today, having been given just three days’ notice of their trial,” Raab said in a statement. “Diplomats from Britain and a number of other countries tried to attend the court proceedings but were denied entry,” he said. The 12 activists, aged from 16 to 33, were captured by Chinese coast guards in August as they set out on a boat to the self-ruled island of Taiwan. They were formally charged on Dec. 16 after being held virtually incommunicado in a mainland prison for more than three months, and were put on trial at the Yantian District People’s Court in Shenzhen on Monday. Two were charged …