A policewoman injured her wrist at an indoor firing range in Tai Po yesterday, the second accident at a police firing range in little over a week. It is understood the 31-year-old constable was walking to her designated position when the accident happened just before 9.30am at the New Territories North headquarters. 'She slipped down, injuring her left wrist, during the training. No misfiring was reported in the incident,' a spokeswoman said. The policewoman was taken to Alice Ho Miu Ling Nethersole Hospital, where she was discharged after treatment. It is understood she was given two days' sick leave. Police said the constable was attending annual firearms training at the time of the incident. A police spokesman said the Weapons Training Division would conduct an investigation. On October 15, a Witness Protection Unit officer accidentally shot herself during a shooting drill at the outdoor Ma Tso Lung firing range near Lok Ma Chau. Chow Nga-lai, 29, was wounded in her right thigh in the incident. It is suspected she pulled the trigger while drawing her gun. Commissioner of Police Dick Lee Ming-kwai has pledged to conduct a thorough investigation into that accident.