A 17-year-old boy who was stabbed to death in Hale Barns has been named as Yousef Ghaleb Makki, Greater Manchester Police said.
Two other boys, both also aged 17, remain in police custody on suspicion of his murder.
The family of Yousef, who was from Burnage on the outskirts of Manchester, have been left "devastated" by the loss of the teenager, Detective Superintendent Phil Reade said.
"This is an incredibly tragic case which has seen a teenage boy sadly lose his life," he said.
"Yousef's family has understandably been left devastated by his death and the thoughts of the entire investigation team remain with them at this difficult time."
Police were called to reports of the teenage boy being stabbed at around 6:40pm on Saturday in the village, which is near Altrincham.
He was rushed to hospital but later later died.
Mr Reade added: "A team of dedicated detectives have been working throughout the night and into today trying to establish exactly what happened.
"The investigation is in its very early stages and we continue to remain open-minded about why Yousef was attacked, and we would like to speak to anyone who may have information that can assist."
The force are particularly keen to speak to anyone in the area of Gorse Bank Road or Sunbank Lane around the time of the attack, he added.
Police ask anyone with information to call 0161 856 6777 or contact Crimestoppers anonymously on 0800 555 111.