Officers were called to the knifing at around 10.30pm outside an address in Oaklands Road, Hanwell, in Ealing and found the victim with stab wounds.
Police have launched a murder probe after a man in his 30s was stabbed to death in a west London residential street on Tuesday night.
Met DCI Alison Foxwell said: “Our thoughts today are with the victim’s family and friends in light of this truly tragic event.
“Local residents will see an increased number of officers in and around Hanwell while our investigative work is carried out.
“I would ask anyone who was in the area of Oaklands Road, who may have seen or heard anything suspicious, to come forward to us.”.
