Whangarei police are recommending children walk to and from school in groups or with adults after reports a man was offering kids free rides near schools.
Last Monday afternoon students from Kamo Primary School were approached after school by a man they didn't know who offered them a ride in his vehicle. There were also reports of a man doing the same thing near Totara Grove School.
Northland police spokeswoman Sarah Kennett said police were working closely with schools in the area and giving them advice on how to deal with the incidents.
"We recommend children walk in groups or with other adults. If they are worried about anyone approaching them, they should go to the nearest adult or house that they trust and get someone to call police immediately."
Kamo Primary School principal Ken Ward said around four students at the school had been approached and said there had since been an assembly to remind students what to do in that situation.