A 27-year-old man has been arrested on suspicion of murder and seven counts of attempted murder following a series of stabbings in Birmingham city centre on Sunday, West Midlands Police said.
The suspect was arrested at an address in the Selly Oak area of Birmingham at around 4am on Monday, police said.
He is being held after a 23-year-old man suffered fatal injuries in one of the knife attacks.
A man and a woman, aged 19 and 32, who suffered serious stab wounds, remain in a critical condition in hospital, police said.
Following the arrest, Birmingham Police Commander Chief Superintendent Steve Graham said: “Officers worked through yesterday and into the early hours of this morning in a bid to trace the man we believe responsible for these terrible crimes.
“We issued CCTV footage of the suspect and had a strong response from the public. I’d like to thank everyone who shared our appeal and who provided information to the investigation.
“One line of inquiry ultimately led us to an address in the Selly Oak area this morning where a man was arrested.
“Clearly this is a crucial development but our investigation continues.
“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.”
This is a breaking news story and will be updated. Follow HuffPost UK on Twitter here, and on Facebook here.