A police officer has been shot dead at Croydon Police Station in south London.
The officer was shot by a man who was being detained at the custody centre in Windmill Lane.
It is believed the suspect was taken to the station, where he was searched, before producing a weapon and firing it at an officer and himself.
The officer was treated at the scene by paramedics after the incident at 02:15 BST. He later died in hospital of gunshot wounds.
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A 23-year-old man was detained by officers at the scene. He was also taken to hospital with a gunshot wound and remains in a critical condition.
No police firearms were discharged during the incident, the Met Police said. The officer’s family are being supported by specialist officers.
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