An internet safety group, Netsafe, says it's fielding growing numbers of calls from upset children and teenagers about sexual content they've sent over the internet or their mobile phones.

Netsafe's director, Martin Cocker says more young people are using webcams and mobile phones to send sexualised messages, typically to boyfriends and girlfriends but also in response to grooming by paedophiles.

He says a growing number of callers want advice on how to remove the pictures from the web, but there is little that can done unless they act early.

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