A paedophile who had sexually groomed under-age girls was caught with further indecent images on his computer, a court heard.

Judge Sam Katkhuda sent Richard Jones, 22, back to prison for an extended sentence totalling three years and two months so he could complete a sex offenders course.

Jones claimed he did not need to do a course as he now accepted it was wrong.

He was also banned from using a computer or ever accessing the internet again.

At Isleworth Crown Court on Friday, Judge Katkhuda told the man: "It is not always apparent to people like you the damage you cause to naïve young girls who are persuaded over the internet to pose for sexual and degrading images for your gratification.

"This sort of behaviour is not only unacceptable, it is abhorrent to the public."

Jones, said to be homeless, but whose family come from Hanworth and who has lived in Elmwood Avenue, Feltham, admitted five charges of possessing indecent images of children over a period of two to three years from 2004.

He was first arrested in November 2006 when a 13-year-old girl he groomed on the internet and later met complained to police of a sexual act he performed in front of her.

When police searched his bedroom in his aunt's home in Hayes, where he had also lived, they found hundreds of images of young girls from all over the country.

He was charged in relation to just five that the police were able to trace and in April last year was jailed for 12 months and placed on the sex offenders' register for 10 years.

He was released in May having served most of the sentence on remand.

Prosecutor Simon Carr said: "But his licence was revoked in June and he returned to prison because he was caught trying to contact one of the girls in this case over the internet."

He then served the rest of his sentence and was re-arrested at the prison gates on his release in November.

The final charge involved two video clips of a 16-year-old, which, after his release on the first charges, he sought out this video and kept it.