A Greenwich teenager charged with the murder of a 16-year-old will appear at the Old Bailey on Wednesday.

Officers were called to Munster Square in Camden on August 12 to reports a boy had been repeatedly stabbed.

Alex Smith, 16, was stabbed after being chased by a group of attackers brandishing a machete.

Arif Biomy, 19, of Wickham Lane was arrested on suspicion of murder at an address in Wembley on August 18.

Another boy from north London was also arrested and the two were charged with the boys murder on August 19.

The two teenagers appeared before magistrates in Westminster and Highbury Corner on August 19, respectively, in brief court hearings either side of lunch.

The pair, who confirmed their names, addresses and dates of birth, were remanded into custody and will appear before a judge at the Old Bailey on Wednesday, court officials confirmed.

No pleas were entered.

Three other men, aged 18, 20 and 23, who were also arrested on suspicion of murder have been released on bail until mid-September.

Witnesses described the group "screaming and laughing" as they pursued the teenager, who was heard shouting "Help me" before collapsing near the doorstep of a family home.

Detective Chief Inspector Paul Healy said: “We believe the victim was chased around the square by a number of suspects prior to being stabbed a number of times.

“The suspects made off in a vehicle which was discovered burnt out nearby. Another vehicle believed to be involved in the incident was also found burnt out some distance away.”

Anyone with information that could assist the investigation is asked to call the incident room on 02083580400 and quote CAD8433/12Aug.

If you don’t want to tell police, then contact Crimestoppers – an independent charity – anonymously on 0800 555 111 or via crimestoppers-uk.org/give-information.