Two teenagers robbed a man of a �700 gold necklace after hitting him over the head with a bottle, and then attacked another man who had tried to help, breaking his jaw in two places, a court heard.

Two teenagers robbed a man of a �700 gold necklace after hitting him over the head with a bottle, and then attacked another man who had tried to help, breaking his jaw in two places, a court heard.

Ashley Youngman, 18, and Nathan Archer, 19, attacked the first victim as he walked home from the pub along Middleton Road in Gorleston, Norwich Crown Court heard.

Lindsay Cox, prosecuting, said the victim remembered being hit with a bottle over his left eye. “His next memory is waking up on the ground with his gold chain missing.”

He said a group had witnessed what happened and a girl had tried to remonstrate with Youngman and Archer and another of the group, Dave Reid, had told them to “leave it out”.

Mr Cox said that Youngman and Archer had then attacked Mr Reid knocking him to the ground and kicking him to the head as he lay on the floor, breaking his jaw.

Archer, of Colomb Road, Gorleston, and Youngman, of Cambridge Aven-ue, Gorleston, both admitted robbery and causing grievous bodily harm to Mr Reid on September 12 last year.

They were both given four years in a young offenders' institution.

Michael Clare, for Archer, said he was not involved in any planning before the robbery and had not been the one to hit the victim with the bottle.

Katherine Moore, for Youngman, said he deserved credit for his guilty plea and that he was still only young.