VICTORIA'S liquor licensing authority is investigating a nightclub promoter who told several schoolgirls via social media to ''kill yourself'' after they asked to have provocative images removed from the venue's Facebook page.

The young women had attended the Pens Down party at CBD nightclub Roxanne Parlour, where students celebrated the end of year 12 before VCE exams began last week.

Images from the Pens Down party Facebook page, and the posting from promoter Christian Serrao.

Pens Down promoter Christian Serrao posted 262 photographs on the event's Facebook page, which included about 30 images of schoolgirls posing provocatively and kissing each other.

Some of the girls were embarrassed by the photographs, while others were under 18 and not legally permitted to enter licensed premises.