Five people were stabbed outside a London station on Monday in the early hours.
The group, which was thought to be in their late teens or early twenties, was brought to the hospital with knife wounds.
Five persons were stabbed outside the Civic Centre, Railway Approach, Harrow, and emergency services raced to the site.
The police investigation is still ongoing, therefore a cordon is still in place.
A brawl broke out near Harrow and Wealdstone station in north London in the early hours of the morning.
Harrow police said: “We were called at 4am to a large fight in Railway Approach, Harrow.
“Five people (age late teens or 20s) taken to hospital with stab injuries. Conditions of two men and one woman are not life-changing or life-threatening. Two other men are in a serious but stable condition.”