A police officer was found with a gunshot wound in Bukit Timah Neighbourhood Police Centre (NPC) on Saturday morning.
Sergeant Sandeep Singh, 23, had reported for work at about 7am and had drawn his service revolver from the armoury.
He was found in the toilet of the NPC 40 minutes later, with a gunshot wound to his head and his service revolver beside him.
Sgt Sandeep was pronounced dead at Alexandra Hospital at about 8.30am.
Police have classified the case as unnatural death and are investigating.
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