Detective Inspector Paul Shortt, of Nottinghamshire Police, said: “This was an appalling act of violence carried out in full view of members of the public.
The 17-year-old is in hospital with “serious injuries” after being slashed in the chest in the shop in Long Row at about 11.30am on Sunday, police say.
A teenage boy has been stabbed in front of shoppers in a Primark store in Nottingham city centre.
Officers believe there was an altercation outside the store between a group of young people before the attack happened.
A suspect then fled in the direction of Market Square, police say.
