A metropolitan police sergeant has died after being shot in the chest at Croydon Custody Centre, located in south London.
A man, who is believed to have been detained for ammunition possession, was brought to the custody suite before the shooting took place during questioning.
The sergeant, who has not been named, died in hospital and was supposedly a few weeks away from retirement.
The 23-year-old gunman turned the gun on himself following the shooting and is currently in critical condition.
Scotland Yard confirmed that no police firearms were used in the incident that took place at approximately 2:15am this morning.
Met Commissioner Cressida Dick stated, “We are in the early stages of the investigation and are still working to establish the circumstances surrounding the incident and we will provide further updates when we have them.”