Police said they first received a call about the stabbings shortly after 12:30 a.m. concerning a man who received a superficial injury followed by a call 20 minutes later about a man and a woman who sustained critical injures in an attack.
The victims include a 23 year-old man who died, and seven others who were injured.
UK Police on Sunday declared a "major incident" after multiple people were stabbed in the city of Birmingham. "Five others have also been injured", the West Midlands police said. "We still need to speak to any witnesses who saw what happened who've not yet spoken to us, or anyone who may have video footage or photos of the incidents or the attacker", he said. "These are events quite unlike anything I have seen on our streets before", West Midlands police Chief Constable Dave Thompson said Monday.
"We are searching for one suspect and the inquiries to identify and then trace that suspect are under way", he said.
"But, notwithstanding that, Birmingham is a good place, it's a good place to be, it's a safe city and it is regrettable that this bad incident happened last night".
"As this continues members of the public will notice an elevated policing presence in the city centre to ensure that they are safe and feel safe as they return to work and this will continue as long as necessary".
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She says it might be worth taking a precaution like this in NSW but the risks in other states, she says, are "incredibly low". This includes having underlying conditions such as diabetes, high blood pressure and obesity or being immunocompromised.
Foreign Secretary Dominic Raab said it was "a very serious incident".
Britain has seen several recent extremist knife attacks, including a stabbing rampage in a city park in Reading, near London, in June that killed three people. Police in Birmingham in central England said they were seeking a single suspect in relation to the series of stabbings.
"We've got to look at the fact (the suspect) had two hours to run around the city centre, which has a huge amount of CCTV cameras in place", Mr Mahmood was quoted as saying by The Times.
Police officers stand near the scene of reported stabbings in Birmingham, Britain, September 6, 2020.
In Edmund Street, drain covers were being lifted and at one stage a black-handled serrated kitchen knife was removed from the muck and debris and carefully bagged as evidence.