Officers investigating a stabbing in the city centre arrested a teenager within minutes of the incident.
Nottinghamshire Police was called at around 1.15pm today 12 October to Milton Street following a report of a stabbing.
Emergency services remain at the scene treating the victim.
A 17-year-old boy been arrested. He remains in police custody.
Inspector Andrew Wright is leading the investigation. He said: “This will have been a frightening incident for people to witness – in a busy area in broad daylight, but officers were swiftly on the scene to make an arrest and officers will remain in the area for some time to provide reassurance.
“This is very much the start of the investigation and we are working tirelessly to establish exactly what happened in this incident and I would ask anyone who saw it to come forward as soon as possible. It was a busy area and we believe a number of people will have witnessed it or seen something suspicious that may be helpful to the enquiry.
“Officers have closed the street and we will remain in the area as part of our enquiries.
“If you have any information about this incident please call 101, quoting incident number 304 of 12 October 2020.”