Three men have been charged with murder after a 17-year-old was fatally stabbed in west London.
Amandeep Singh, 21, Manjit Singh, 27, and 31-year-old Ajmeer Singh, all of Southall, west London, will appear at Westminster Magistrates' Court today, the Metropolitan Police said.
A fourth man, 71, remains in police custody.
Simarjeet Singh Nangpal was found by police with stab injuries after a suspected fight in Burket Close, Hounslow, at 12.15am on Wednesday.
The teenager, who was local to the area, died at the scene despite the efforts of the emergency services.
Earlier, Detective Superintendent Figo Forouzan said: "Our thoughts remain with Simarjeet's family at this extremely difficult time.
"No family should have to go through what they are experiencing.
"This incident will undoubtedly cause wider concern, and I want to reassure the community that we will do everything in our power to find those responsible."