A 37-year-old man has been arrested on suspicion of murder by detectives investigating the fatal stabbing of teenager Keane Flynn-Harling in south London.

He is in custody at a south-west London police station and is the second person to be arrested over the incident, after a 29-year-old man was held on Thursday, and has since been released on bail to a date in August.

Police were called at around 11.45pm on July 5 to a teenager stabbed in Oval Place and Keane, 16, was pronounced dead at the scene.

His family are being supported by specially-trained officers while detectives from the Met’s Specialist Crime Command are leading the investigation and continue to appeal for witnesses.

The day after the stabbing family and friends laid flowers and cards at the scene to pay tribute to the teenager, and multiple flowers and messages addressed to “Keane” were left nearby.

Speaking to the PA news agency a family friend of the boy described him as “nice, friendly, bubbly… a nice character”, and said she had known him all his life.

Chief Superintendent Colin Wingrove, responsible for local policing in Lambeth and Southwark, said at the time: “I am shocked and saddened by the senseless loss of another young life to knife crime.

“I am also deeply saddened that another family experiences the painful loss of a son, and the trauma knife crime brings is once again experienced in our local community.

“Every loss of life is a tragedy and this needless violence must end.

“I urge anyone with information to come forward.”

Anyone with information is asked to call police on 101 or tweet @MetCC quoting CAD 8532/05Jul.