Police are conducting a comprehensive review of their annual fitness test following the death of an officer. Constable Ng Chun-shan, 30, who died on Tuesday after completing a 4.8km walk, was the second policeman to have died during the fitness test since it was introduced in 1984, according to a police spokeswoman. The test was suspended after Ng's death. The spokeswoman said the force would look into all related aspects of the fitness test, such as safety measures, first-aid equipment and the degree of difficulty. The new police chief, Dick Lee Ming-kwai, who took charge yesterday, said the annual test was continuously reviewed. 'We have conducted a study and review recently. The cause of this incident is still being investigated.' 'Because of the incident, we have temporarily suspended the fitness test this year until we have found out the cause.' Ng collapsed in a Wan Chai park after the walk on Tuesday morning. Three training instructors qualified to administer first aid tried unsuccessfully to resuscitate him at the scene. In November last year, a 28-year-old constable died after completing a 2.4km run during the test at Kowloon Tsai Park in Wong Tai Sin.