An investigation is underway after five people were seriously assaulted in Chandler's Ford on 31st October.
Police were called just after 10.30pm to a report five teenage boys, three aged 16 and two aged 17, had been stabbed. All five were taken to hospital having suffered serious injuries.
When officers arrived at the scene, it was established an unknown group had gained entry to a party at an address in Park Road.
Officers have begun their enquiries; speaking with witnesses, identifying CCTV and other footage available, and making enquiries at neighbouring houses and in a number of other nearby streets.
Those enquiries continue, with scenes in place in Park Road and Valley Road.
Senior investigating officer DCI Elizabeth Pirie said: "We are already hard at work identifying anyone who was at the party who may be able to assist our enquiries, whether that be having directly witnessed what took place, having filmed any footage which may be relevant, or who may be able to help us identify the unknown group.
"I understand the response the local community may have to hearing about this incident this morning, and I do not underestimate the impact our scenes will be having on those living in the area. These scenes are vitally important for our enquiries and we are grateful to the understanding of our communities whilst we work to establish the facts.
"If you do have any concerns or information, then please do not hesitate to speak to us.
"We particularly want to hear from anyone who can provide information to support our investigation. If you were at the party and have not spoken with officers yet, or you have any CCTV, mobile phone, dash cam or doorbell camera footage covering Park Road and the surrounding area, then please get in touch.
"Any information, however small it may seem, could help our enquiries."
You can contact Hampshire Police by calling 101, and quoting the reference 44260534624, or by going to website: https://www.hampshire.police.uk/tua/tell-us-about/cor/tell-us-about-existing-case-report/
You can also submit information 100 per cent anonymously through the independent charity Crimestoppers, by calling 0800 555 111, or on their website https://crimestoppers-uk.org/give-information/forms/give-information-anonymously
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