A prisoner jailed for unprovoked knife attacks on two teenagers has admitted attacking a prison officer.

Kurt Nelson, 21, was sentenced to 11 years in custody with a further four years on licence after he admitted two woundings, a burglary and three counts of possessing a bladed article over the course of six weeks last autumn.

Nelson, of HMP Norwich, appeared at Norwich Magistrates Court on Friday (July 6) after being charged with assaulting a prison officer at the Knox Road jail in May - while on remand ahead of last month's sentencing hearing.

Wayne Ablett, prosecuting, said the incident took place on May 8 this year.

He said Nelson had been rude to the prison officer who he struck on the back of the head.

The officer, who reached for his baton, was further assaulted before assistance arrived.

Mr Ablett said the prison governor said every assault on a member of staff had a 'physical and emotional' impact which disrupted the daily running of the prison.

Natasha Baker, mitigating, said there was a guilty plea at the first time of asking and Nelson accepted that he punched out at the prison officer.

She said Nelson, who lost his father earlier this year, had already been dealt with internally by the prison who had put him on segregation following the incident.

Nelson was ordered to pay £50 compensation to the officer.

As previously reported, on September 25 last year Nelson approached 15-year-old Adam Wright in broad daylight close to Ketts Cave and stabbed him in the chest with 'no provocation whatsoever'.

Then, on October 17, Jamie Atkinson was out with friends in the city around 10.30pm. The 18-year-old had been in Norwich just three weeks after moving to the city as a fresher at the University of East Anglia.

While leaving a friend's house they heard a shout of 'guy with a knife', when Mr Atkinson turned and saw a man carrying a large blade.

Before he could run away Nelson reached him and swung the machete at him which resulted in his face caused his face 'bleeding profusely'.

Judge Anthony Bate, jailing him, told Nelson he posed a very high risk of harm to the public.

'I perceive you at the moment as a very dangerous young man, particularly when you perceive some slight against you,' he said.