The suspicious incidents, all of which happened since Friday, led officials to issue an alert. Parents like Lynn Jacobson are taking extra precautions.
"I told my daughter today that she needs to walk home with her two girlfriends and then I'm picking my youngest daughter up from school," Jacobson, Oak Park resident, said.
"If you don't know the person, then he has no business talking to you. If you don't hear from us that so and so is picking you up, then by no means talk to this person," Peter Shorner, parent, said.
The first incident was reported Friday at Hatch School in Oak Park when police say a man in a car tried to have a conversation with a student. Two other incidents happened Monday in Oak Park: the first at Longfellow, where a student was followed by a man in a car; an hour later, a man offered a ride to a student in the 800 block of South Oak Park Avenue. The fourth incident took place on Tuesday in Berwyn when a man asked a student for help on 16th Street.
Berwyn police notified Oak Park police, which led to the alert. Oak Park District 97 posted the alert on their website.
"What we're really trying to stress is what we always stress when it comes to safety and that's things like kids should never walk alone. They should try to walk in a group or at least with one other individual," Chris Jasculca, Oak Park District 97, said.
All four incidents involve a person described as a Caucasian male in his 50s with grey hair driving a 4-door white car.
No children were hurt in the incidents, and in each case they reported it to an adult. Anyone with information about these cases is asked to call oak park police.