Police are continuing to investigate the events at Manchester Arndale Shopping Centre yesterday.
On Friday morning at around 11am, a knifeman ran amok in the busy shopping centre, injuring at least four people.
A 59-year-old man received stab wounds to his hand and palm. A 19-year-old woman received stab wounds to her arm and arm pit, which required surgery. She remains in hospital but her injuries are not believed to be life threatening
Another 19-year-old woman received a cut to her elbow and a 33-year-old woman sustained a cut to her stomach
A 43-year-old woman was physically involved in the incident but doesn’t appear to have any visible injuries
The man believed to be the attacker has now been detained under the Mental Health Act.
The investigation will be continued by Counter Terrorism officers but an open mind is being kept in relation to any motive.
The arrested man was considered unfit to be kept in custody and had to be transferred to mental health detention.
A spokesperson for Greater Manchester Police said: "We now know that at least one member of staff from the Arndale and a member of the public intervened in the attack and we would like to praise and thank them for their bravery."