Published Thursday, 12 September 2013
The man has approached school children on Facebook. (© Getty)
Darren Barr, Principal of Bloomfield Collegiate in east Belfast said he had warned his pupils to block anyone trying to establish contact with them on social media sites offering modelling work.
"It's disgraceful and to think that our children are exposed to such behaviour is just reprehensible," he commented on Thursday.
He said another school in south Belfast had also sent an email out after a number of girls had been contacted.
The man sending the messages has tried to add the young people on Skype and has claimed he would hold a modelling session at a location in Belfast.
Dr Barr said he has worked with other local schools to spread the warning message.
"We are always trying to be proactive in trying to encourage the girls to be safe online, particularly when it comes to using Facebook, Twitter and images when using mobile phones," he explained.
"There are so many pitfalls (for young people) and we're always better to educate rather than try to pick up the pieces afterwards.
"It's becoming more prevalent in society so if we can educate them to sift out what's wrong with the internet and use it for the positive things then I think we have done our job effectively."
Dr Barr described efforts to try and keep young people safe online as "a constant battle" but said the only solution was to make them aware of the dangers.
"It's ensuring the girls understand what the consequences are of sending an inappropriate image of themselves, that once it's gone it's gone," he added.
"It's making them aware that they have the ultimate responsibility of protecting themselves, we can't do it for them."
A spokesperson for PSNI said they were aware of the reports and an investigation is underway.
© UTV News