No details of the officer involved will be released until family members have been informed. Our thoughts are with the officer's family and friends at this difficult time.
We can confirm that one of our colleagues has died following a firearms incident in Baird Street police station this morning.
It is too early to speculate as to the circumstances surrounding the tragic death and our thoughts turn immediately to his family who have lost their loved one and colleagues who have lost a friend
No one else is understood to have been involved in the incident according to PA.
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Armed police have carried out a raid apparently linked to Wednesday's deadly terror attack in Westminster.
Cheryl Grimmer vanished from inside a beach shower block in Wollongong, Australia, in 1970, when she was just three.
Pc Keith Palmer was on the front line and because of his actions, the Westminster attacker was unable to kill anyone else.