Police made a further arrest in connection with the investigation overnight. Six people have now been arrested in total.
Detective Superintendent Wayne Fox, who is leading the investigation, said: “A scene will remain in place at Millgate over the coming days.
The public should expect to see an increased visible police presence in the Selby area over the weekend. I hope the community feel reassured by this and is not alarmed. I would urge anyone who has a concern to speak to officers on patrol.
“I would urge anyone who has any information in relation to this incident to contact us by submitting information online at https:///www.mipp.police.uk/ Please click on the North Yorkshire Police crest.
Alternatively, please contact us on 101 and quote reference number 12220049571 or contact Crimestoppers anonymously on 0800 555 111.