A Metropolitan Police spokesman said: “At around 2.15pm on Thursday, September 10, officers were called to reports of an argument in Bromley High Street.
“Officers attended the scene along with London Ambulance Service and London Air Ambulance and found four men with stab wounds.
“Three of them were taken to hospital where they are being treated for non-life threatening injuries. One is in critical condition.
“Seven men were arrested and all remain in custody.
“Police inquiries are ongoing and it is not believed there is any wider threat to the public.
“Anyone with information is asked to contact police on 101 quoting CAD 4008/10SEP or anonymously on 0800 555 111 Crimestoppers.”