Police have launched an investigation after an officer's locker was broken into and HK$1,650 stolen.

It's understood that the theft took place at the force's Kowloon East regional headquarters on Sunday.

The officer was said to have checked his locker was secured before he started work at around 2pm, but found that it was half-open with signs of forced entry by the time he clocked off at 11pm.

Officers later discovered a total of 10 lockers had been prised open.

The matter has been classified as a burglary.