Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: Officers were called to The Mall in Luton at about 14:30 GMT on Sunday, along with crews from the East of England Ambulance Service. The two boys sustained "serious injuries" and remain in hospital. Both have been arrested on suspicion of violent disorder. Bedfordshire Police said there will be "increased patrols" around The Mall. 'Broad daylight' Images on social media showed a large knife on the ground outside WHSmith in the shopping centre. Det Insp Jackie Dadd, from Bedfordshire Police, said: "This happened in broad daylight in a busy shopping centre and has obviously caused some real concern to members of the public. "We are aware that there are a lot of images and video being circulated on social media, and would urge anyone who captured the incident on their phones to contact police." Police have asked anyone with information to contact them on the non-emergency number 101 or call Crimestoppers anonymously on 0800 555 111.

Two boys stabbed at The Mall in Luton arrested