Police are hunting a single suspect after a series of stabbings in Birmingham city centre early on Sunday.
One man died, another man and a woman suffered serious injuries, while five others received injuries which were not thought to be life-threatening.
Chief Superintendent Steve Graham said victims appeared to be attacked at random, but there was "absolutely no suggestion" they were terror-related.
West Midlands Police want anyone with CCTV or mobile footage to contact them.
They said police were at scenes across the city, including Livery Street, Irving Street and Hurst Street.
Ch Supt Graham, responsible for policing in Birmingham, said: "The events during the early hours of this morning are tragic, shocking and understandably frightening.
"It does appear to be a random attack because we haven't found any links between the victims, either in their nature or in where they were socialising.
"Please be assured that we are doing absolutely everything we can to find whoever was responsible and try to understand what exactly happened.
"Anyone with information is asked to contact us via Live Chat on our website or call 101."
The BBC's Nick Clitheroe, at the scene, said the incidents had unfolded in a part of Birmingham where the area known as the Gay Village meets the Chinese Quarter, which is typically busy at night with clubs and bars.
He added: "This appears to have started out as a major fight between large groups of people but obviously at some point knives have been pulled and stabbings have taken place."
https://www.bbc.co.uk/news/uk-england-birmingham-54045143
One man died, another man and a woman suffered serious injuries, while five others received injuries which were not thought to be life-threatening.
Chief Superintendent Steve Graham said victims appeared to be attacked at random, but there was "absolutely no suggestion" they were terror-related.
West Midlands Police want anyone with CCTV or mobile footage to contact them.
They said police were at scenes across the city, including Livery Street, Irving Street and Hurst Street.
Ch Supt Graham, responsible for policing in Birmingham, said: "The events during the early hours of this morning are tragic, shocking and understandably frightening.
"It does appear to be a random attack because we haven't found any links between the victims, either in their nature or in where they were socialising.
"Please be assured that we are doing absolutely everything we can to find whoever was responsible and try to understand what exactly happened.
"Anyone with information is asked to contact us via Live Chat on our website or call 101."
The BBC's Nick Clitheroe, at the scene, said the incidents had unfolded in a part of Birmingham where the area known as the Gay Village meets the Chinese Quarter, which is typically busy at night with clubs and bars.
He added: "This appears to have started out as a major fight between large groups of people but obviously at some point knives have been pulled and stabbings have taken place."
https://www.bbc.co.uk/news/uk-england-birmingham-54045143
