A man who was stabbed to death inside his car in south-west London was the victim of a "vicious and targeted" attack, police have said.
The 40-year-old driver was knifed multiple times by three men as he was turning onto Clapham Park Road, near Clapham Common Tube station, on Friday.
The victim died at the scene outside the Belle Vue pub and his next of kin have been informed, Scotland Yard said.
No-one has been arrested in connection with the killing.
Det Ch Insp Paul Healy said: "This was a vicious and targeted attack on a man inside his car in a busy area."
The force is trying to track down three male suspects, "all of slim build", who were seen leaving the area immediately after the attack at about 14:30 GMT, he added.
In response to the fatal stabbing in #Clapham on Friday and the fatal shooting in #WestNorwood on Wednesday, a Section 60 Stop & Search power has been authorised by DAC Pearson for use between 1400hrs today & 0200hrs on Mon 1st April 2019. Attached map details area covered. pic.twitter.com/6dL1YntTzI— Lambeth MPS - Central South Command (@LambethMPS) March 31, 2019
The Met also urged any witnesses or people with dashcam footage to get in contact.
A section 60 order granting police in the area extra stop and search powers since the attack on Friday will remain in place until at least Monday, local police said.
Ch Supt Simon Messinger said he understood the "alarm and concern" of local residents as the attack came just two days after a fatal shooting in the same borough.
Police do not believe the deaths are connected.
There have been 22 fatal stabbings in the capital this year so far.
Knife crime victims in 2019
Motives and circumstances behind killings have varied - as have the age and gender of the victims.