Teenage victims are recovering in hospital after being stabbed in broad daylight in Hayes on Monday (June 19).
Police were called by London Ambulance Service to Grange Road, near the Beck Theatre and Uxbridge County Court, at 5.40pm.
The emergency services found a 17-year-old and 18-year-old boy with stab injuries. They were taken to a central London hospital but their injuries are not life-threatening or life-changing.
This was the fourth stabbing in Hayes so far in June, with five teenage victims requiring hospital treatment for their injuries.
Two hours later police were called to a west London hospital where a 17-year-old had self-presented with stab injuries.
They also found another 17-year old and a 16-year-old at the hospital with minor injuries.
After receiving medical attention, all three were arrested on suspicion of Grievous Bodily Harm but the 16-year-old was de-arrested soon after.
Both 17-year-olds who were arrested have been released under investigation.
The stabbing is just a few hundred metres from Addison Way, where a 19-year-old year old was stabbed in the leg on June 12.
The following day, just a few hundred metres from there, a 17-year-old was stabbed in Yeading Lane.
On Saturday (June 17) an18-year-old was stabbed on Woolacombe Way near station Road in Hayes.
On Friday (June 16) a teenager was stabbed in broad daylight on Southall Broadway, just a mile west of Addison Way. Another man was "slashed across his chest" in Southall Park on June 4.
Hillingdon Police are asking for anyone with information that may help their investigation to contact Uxbridge CID on 020 8246 1404 or Tweet @MetCC.
You can also contact Crimestoppers anonymously on 0800 555 111.