Police were called to Kingsley Road, Hounslow, to reports of a fight breaking out in the street in the early hours of Tuesday (November 8) morning at around 12.30am.
Four people have been arrested in connection with the incident in which two men and one woman were injured and taken to hospital.
One man aged 27 is said to be suffering from life threatening injuries.
A police cordon was lifted at around 3pm.
Chief Inspector of Neighbourhood for Hounslow, Wayne Matthews, spoke to getwestlondon following the incident to reassure residents that the nature of the stabbing was between individuals known to each other and not a random attack of violence.
Mr Matthews said: “The altercation is believed to be involving an ongoing dispute between the individuals.
“Our message to the community is this was not an unprovoked attack.
“We believe this to be an ongoing dispute between individuals concerned and not a random attack.
“There is no risk to other members of the public.”
Police have stepped up patrols in the area for public reassurance.
They hope more officers on the streets will help improve relations with the community and also assist in gathering any further intelligence from members of the public.
This is the third stabbing in the borough over a period of one month.
On October 6 a man was knifed in the stomach at around 8am on the Great West Road.
The following day another man was robbed and stabbed in the chest near Hounslow town centre at around 2.30am.
“We have had a small increase in the number of violence involving weapons,” said Mr Matthews.
“However I need to be clear that in the majority of the incidents they involved individuals engaged in a dispute between themselves as opposed to an unprovoked attack on innocent members of the public.
“Such risk to the public is very low. That said we will take all incidents extremely seriously.
“Hounslow Police have done a huge amount of pro-active work to counter incidents of violence especially those that involve a knife or weapons.”
Last month Operation Sceptre received some successful results with a huge number of weapons sweeps in central locations.
In addition to this, officers visited schools to present students with material on operation Trident to help deter youths from getting involved in crime.
Police ran ANPR (automatic number plate recognition) operations in the borough and a new team has been set up to bring in outstanding and wanted suspects with more than 50 arrests made in two weeks.
Hounslow CID is leading the investigation into the latest stabbing and has said at this stage it is not looking for any other suspects.
Mr Matthews said: “If anyone has information they should make themselves known by contacting Hounslow Police or Crimestoppers.”
The three injured were arrested on suspicion of grievous bodily harm and affray.
The 26-year-old woman and 26-year-old man discharged from hospital have been taken into custody at a west London police station.
A 27-year-old man who was also arrested, remains in a critical condition in hospital.
A fourth man, who was uninjured, was arrested on suspicion of affray. The man, in his 20s is in custody at a west London police station.
Contact Hounslow Police via 101 or call Crimestoppers anonymously on 0800 555 111.
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