Police are are looking into seven reports of men approaching children in Dartford and Gravesend.
The reported incidents date from Friday, February 10 to Wednesday.
Schools across both boroughs have sent text messages to parents to alert them of potential dangers.
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Student Charlie Mann was jailed for 16 months for the attack on his mother at their family home while high on Meow Meow.
Monday night's weather for the east of the region
Monday night's weather for the west of the region