A 16-year-old who admitted stabbing another boy to death in a row over the sale of a £90 bicycle has been handed a life sentence.

Danny Drake knifed 17-year-old Alim Uddin seven times at a block of flats in Brixton, south London, on May 4 this year.

Alim had gone to meet him to ask for his money back after he handed over £90 for a bike the defendant failed to deliver, the court heard.

Drake, from south west London, had denied murder but changed his plea to guilty on the second day of his Old Bailey trial after hearing the prosecution case against him.

Sentencing him at the Old Bailey today, Judge Stephen Kramer ordered him to serve a minimum of 13 years behind bars.

Earlier, prosecutor David Jeremy QC had told the court: "This defendant stabbed Alim Uddin to death. The reason, if there can be a reason, was that Alim Uddin had given (the defendant) £90 to buy a bicycle from him.

"(The defendant) did not provide the bicycle and he did not give his cash back so the two of them arranged to meet so, as Alim Uddin understood it, he could be repaid.

"He was angry that (the defendant) had ripped him off. There were on both sides expressions of youthful bravado but nothing that suggested it would lead to a killing.

"The friends of Alim Uddin described the two boys as being wary of each other but said Alim was not angry or expecting a fight. He just wanted his money back."

The victim went alone to meet the other boy at Tilford House in Brixton, leaving his friends in a nearby park.

Just before 5pm on May 4, a resident at the block of flats heard a "thud" and discovered Alim collapsed on his doorstep. The teenager was pronounced dead at King's College Hospital an hour later.

A post-mortem examination found seven incised wounds - four to the front of his chest, one to his lower back, one to his shoulder and one to his thigh.

Mr Jeremy said: "The stab wounds suffered by Alim Uddin and the complete lack of injury suffered by (the defendant) paints a clear picture of how Alim Uddin came to his death."

After the murder, the defendant tried to distance himself from what he had done, the court heard.

He was caught on CCTV going home and then leaving a short time later carrying a bag and wearing a different top bound for a relative's house in Tooting, south-west London.

But when police searched his home, they discovered a blood-stained sweatshirt with DNA matching Alim's on it, the jury was told.

Drake had also taken clothes to a launderette in Tooting but, finding it closed, had soaked another top and a pair of jeans in the bath.

Police found the clothes after they tracked Drake down at the second address, with a black bag which contained the murder weapon with the handle wrapped in a glove.