Mandurah police are asking for the public's help to identify a suspicious man they say approached children in Lakelands on two separate occasions this week.
Police say the incidents happened at about 7.20pm on Monday on Yindanna Boulevard and about 6.30pm on Thursday on Albina Chase.
Police allege the man approached children and was driving a blue utility.
Detectives request anyone with dashcam footage or CCTV within the area of the park on the corner of Yindanna Boulevard and Nullewa Parkway and also the vicinity of Albina Chase, Lakelands to contact Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au.