A third person has been arrested in connection with the murder of Croydon teenager Jermaine Goupall.

A 17-year-old boy was taken to a south London police station for questioning this morning (Monday) on suspicion of murder.

Saskia Haye-Elliot, of North Downs Crescent and a 16-year-old boy who can not be named because of his age, will also appear in court today after being charged with murdering the 15-year-old.

Jermaine was killed by a single stab wound to the leg after he was confronted by three men while out with friends, police said.

RELATED: Teenage boy Jermaine Goupall stabbed to death with a 'samurai sword' in Georgia Road Thornton Heath.

The 15-year-old died at the scene in Green Lane, Croydon, shortly before midnight on Tuesday.

The two people charged, who have not been named by police, are due before magistrates in Bromley today.

The Met's Homicide and Major Crime Command is investigating, and they want anyone with information about the circumstances around Jermaine's murder to come forward.