A teenage inmate at a Cambridgeshire prison called the Samaritans claiming to be an Al Qaeda member and demanded £1million to prevent a bomb going off at Heathrow, a court heard.

Jordan Wass, 19, was serving a sentence for robbery at HMP Littlehey in February when he called The Samaritans charity claiming he was Al Qaeda member Mohammed Assan and a car bomb was on its way to the airport.

He also demanded £1million to prevent the fictional bombing.

He made several calls between February 24 and 26.

The calls were traced to the prison and Wass identified as the caller. He admitted making the calls and was charged with three counts of causing a bomb hoax.

He pleaded guilty and asked for a further eight incidents to be taken into consideration.

He had a further two years added to his sentence at Peterborough Crown Court last Friday.

Detective Chief Inspector Richard Wall said: “We will not tolerate this kind of behaviour. Such threats are taken very seriously by the emergency services as they can cause a large amount of disruption.”

Wass, of Ryhall, was sentenced to 16 months in prison for robbery and 16 months for attempted robbery at Leicester Crown Court last summer, the sentences to run consecutively.

Wass had previously pleaded guilty to the offences which took place at Martin’s in High Street East, Uppingham.