About 60 triad suspects surrounded and assaulted members of a police anti-triad team during an investigation at a nightclub in Tsim Sha Tsui East yesterday. Police reinforcements equipped with batons and shields were called to the nightclub as three police officers were assaulted. Twenty-eight men, believed to be members of the '14K' triad society, were arrested. The trouble began at 2.30 am when a team of 10 anti-triad officers questioned 10 men in the China City Nightclub in the Peninsular Centre. The men were suspected of involvement in criminal damage at a Yau Ma Tei restaurant, where six men smashed plates and furniture on Thursday night. They refused to produce their identity cards as requested and shoved police officers. A police spokesman said as the group was subdued about 50 people emerged from several rooms and surrounded the police. The officers drew their guns and radioed for help as three were attacked. Reinforcements from the Emergency Unit and Tsim Sha Tsui police station arrived with batons and shields and arrested 28 suspected triad members aged 16 to 45. The three officers who sustained minor injuries were treated at Queen Elizabeth Hospital. The suspects were detained overnight at Tsim Sha Tsui police station for questioning.