Hunt for man filming girls in change rooms

A man filmed two teenage girls in change rooms at a popular Sydney shopping centre.

The girls - aged 16 and 17 - were using separate change rooms at an Oxford Street store at Bondi Junction when a man was seen placing his mobile phone under the door on a Saturday afternoon several weeks ago.

Security staff escorted him from the centre and NSW police on Thursday released CCTV images of a man they want to question over the incident.