A crackdown on brutal internet porn is set to be announced by ministers.

Web sites glamourising sexual violence will be targeted using methods similar to those deployed against child pornography.

The plans, which would give greater powers to police, are expected to be announced in the next few months following international talks.

The action comes after Home Secretary Charles Clarke met the mother of 31-year-old Brighton teacher Jane Longhurst who was murdered by a man addicted to violent internet porn.

Miss Longhurst's mother Liz has campaigned for a ban since February last year when Graham Coutts was convicted of strangling her daughter at his flat in Waterloo Street, Hove, the previous year.

Her efforts won her The Argus Achiever of the Year award in May.

Under the new proposals any British site which carried illegal violent porn could be closed down.

Viewing such material from the UK on sites based abroad could also be made an offence.

A Home Office spokeswoman confirmed: "We are looking at ways in which the current law might be strengthened.

"We want to do all we can to block access to illegal sites. Officials are in talks with internet firms."

She continued: "We support effective action in relation to sites hosted in other countries but believe this can be achieved only through international co-operation. We have made a lot of progress in relation to child pornography and we will look at how lessons can be learned form that."

Coutts, 36, strangled Miss Longhurst to satisfy his perverted sexual fantasies.

He kept her body in a box in his shed for 11 days before moving her to a storage unit in Brighton for a further two weeks.

The special needs teacher's burning body was found on Wiggonholt Common, near Pulborough, on April 19, 2003. Coutts was jailed for life and will serve a minimum 26 years. He had downloaded thousands of images of strangulation and necrophilia before killing Miss Longhurst.

Her mother has amassed more than 31,000 signatures for a petition calling for the banning of violent internet web sites.