A 15-YEAR-OLD boy was chased by a "hunting posse" of boys on bicycles and stabbed to death, Britain's Old Bailey court has heard.

Negus McLean was repeatedly stabbed until the blade of a large knife broke away from its handle.

He was a victim of postcode rivalry between two teenage gangs, which saw three stabbings in a week in neighbouring areas of north London, jurors heard on Monday.

The first two victims involving rivals from the Enfield EN3 Get Money Gang and Edmonton N9's Dem Africans group, survived.

But Negus, a member of DA, died from his injuries following the attack by members of the GMG on April 10, 2011.

Simon Denison, QC, prosecuting, said: "A group of seven boys from the GMG gang rode out of EN3 on bicycles, like a hunting posse, south into N9, in order to carry out that attack."

Negus was riding his bike with some other lads when he was spotted, chased and killed.

"Negus came off his bike and he was attacked. He was knocked to the ground and repeatedly stabbed in the chest and in his legs," Denison said.

"A metal knife that was used to stab him was driven down into him with such force that the blade snapped off the handle.

"Negus was left lying on the pavement, blood pouring from his wounds.

"He lost a lot of blood very quickly and died that evening in hospital."

Four young men aged between 16 and 19, who the prosecution says were members of the GMG, deny murder.

Two alleged gang associates, a 19-year-old man and a 17-year-old girl, deny perverting the course of justice.