[url=http://news.bbc.co.uk/1/hi/england/manchester/4492046.stm]BBC News[/url] said:
An investigation is under way by Greater Manchester Police after an officer accidentally fired a gun in a police station changing room.
The weapon went off as he was reloading it in a locker room at Collyhurst station in Manchester.
It is believed that the bullet ended up embedded in a wall.
Greater Manchester Police said no one was injured in the accident, adding that it had started an "urgent" investigation into how it happened.
The officer involved is a member of the Tactical Aid unit.
The force policy states that an officer must unload and reload his gun in a police building - but there is no specific area set aside for this.
A spokeswoman for GMP said: "A GMP authorised firearms officer unintentionally discharged a firearm inside a police building in the North Manchester area.
"No members of the public or any other people were placed in any danger and there were no injuries. However, the force has launched a full and urgent investigation into the circumstances of this incident.
"This is the first time an officer from the Tactical Firearms Unit has been involved in an incident of this nature."
The weapon went off as he was reloading it in a locker room at Collyhurst station in Manchester.
It is believed that the bullet ended up embedded in a wall.
Greater Manchester Police said no one was injured in the accident, adding that it had started an "urgent" investigation into how it happened.
The officer involved is a member of the Tactical Aid unit.
The force policy states that an officer must unload and reload his gun in a police building - but there is no specific area set aside for this.
A spokeswoman for GMP said: "A GMP authorised firearms officer unintentionally discharged a firearm inside a police building in the North Manchester area.
"No members of the public or any other people were placed in any danger and there were no injuries. However, the force has launched a full and urgent investigation into the circumstances of this incident.
"This is the first time an officer from the Tactical Firearms Unit has been involved in an incident of this nature."
What about SOPs like having someone supervise loading/unloading in order to prevent mistakes?
Someone had a big round to buy that night...