An investigation has been launched following disorder in Shard End, Birmingham.
Officers were called to Heath Way at 7.15pm to reports of disorder. A man was found outside a shop with multiple stab wounds.
The 27-year-old was taken to hospital where he remains in a serious condition.
Following the disorder, section 60 powers have been authorised in the Shard End area.
The extra powers enable us to stop and search people police suspect may be involved in violence, without the need to have reasonable grounds.
Det Insp Tom Lyons, from our Major Crime Unit, said: “We’re urgently trying to establish what happened yesterday. We are carrying out CCTV enquiries in the area and speaking with a number of witnesses.
“I would urge anyone with information to get in touch as soon as possible. “We will have an increase of officers in the area to offer reassurance to the community.”