Dr Alan Billings, South Yorkshire Police and Crime Commissioner said: “The stabbing of a fifteen year old boy is a matter of great sorrow for his family. It is also deeply troubling for the community and the city since it is the latest in a number of similar incidents involving knives. I cannot comment further on this case but there are some wider messages that we need to communicate to the communities of Sheffield.

“This is still a comparatively rare event. The city is still a safe place. But those who believe they make themselves somehow safer by carrying a weapon are mistaken. They are more likely to become a victim themselves. Anyone who uses a knife and is brought to justice, risks blighting the whole of their future life.

“The police will be supported by the community if they increase the use of stop and search, provided that this is done proportionately and fairly. I have had mothers come to me to say they support stop and search because they don’t want their children hurt.

“There is a responsibility on all of us to report to the authorities if we have any information that can assist the police.

“As we approach the summer months, we need to provide as many activities for young people as we can, to help keep them away from anti-social behaviour and gang involvement. I urge community groups that need small amounts of funding to put on activities to contact my office. Our small grants scheme will shortly open for requests up to £5,000.”