Police in Canterbury are urging parents and children who use social media to be vigilant after a mother complained her 12-year-old son received threats on Facebook.
The complaint alleges the boy was asked to send naked photographs of himself to a Facebook user who had just friended him.
The boy refused and the Facebook user reportedly responded in a threatening manner.
Constable Mike Kneebone said while that was the only complaint received, police knew of at least one other 12-year-old boy who may have also been approached by the same person.
Mr Kneebone said anyone else who had been approached in a similar way should contact police.