YOUNG girl victims of a teenage sex attacker were distraught last night – after being “named” on Facebook.

A post on the social networking site listed the Huddersfield girls’ names – and referred to them as “little slags”.

Police were called in to investigate last night as families of the victims expressed their horror.

They were even more angry as the 16-year-old attacker who sexually abused their daughters was granted anonymity.

A judge refused to lift an order banning his identification.

The boy, who was sentenced to three years’ detention early yesterday afternoon, had originally been charged with rape.

But he admitted lesser offences of sexual activity with a child, a plea which was accepted by the prosecution to prevent the girls having to give evidence.

The teenager had sex with four of the girls – one of whom had celebrated her 13th birthday three weeks earlier – and threatened to harm them if they told anyone.

One of the girls was told she would be stabbed if she talked.

Less than an hour after the judge had sentenced the boy at Bradford Crown Court, the posting appeared on Facebook.

It is thought to have been posted from a mobile phone.

West Yorkshire Police’s special rape unit, who had investigated the case, confirmed they are now investigating.

But the mother of one of the girls said: “It is vile and disgusting.

“We had been in court for the sentencing and when we got home, we were told about the Facebook posting. Everyone could see who the girls are so we contacted the police.

“My daughter, who has been so strong throughout all this, is very upset, as are the others.

“I sat through the case and heard how the sex was described as consensual. How can that be the case when he had his hands around my daughter’s throat?

“It is disgusting that people are supporting him, even though six brave girls have now given evidence to show that he is a sexual predator.

“My daughter is getting through it. It is all very traumatic but she is determined it is not going to define her life.”