The deaths of a woman and two children at a house in Norfolk are being treated as murder, police have confirmed. Kanticha Sukpengpanao, 36, Jasmin Kuczynska, 12, and Natasha Kuczynska, eight, were discovered with stab wounds to their necks on Friday. The death of Bartlomiej Kuczynski, 45, who was also found with a stab wound to his neck, is not being treated as suspicious, Norfolk police said. It is understood that officers are not looking for anyone else in connection with the killings at the house in Allan Bedford Crescent, Costessey. The four bodies were discovered by police after a call from a member of the public on Friday morning. Officers forced their way into the home at 7.15am after a call from a member of the public. DCI Chris Burgess, of the Norfolk and Suffolk major investigation team, previously told reporters: “I recognise the shock and upset this incident will cause in the local community and we will have increased patrols in the area across the weekend. I would urge anyone with any concerns to speak to these officers.” Detectives said the man and two children lived at the address and the woman was visiting and lived elsewhere. Reports have said she was the girls’ maternal aunt. He said police had visited the property on 14 December in relation to a missing person inquiry. It is understood that a man called 999 from the property at about 6am on Friday but police were not dispatched. Officers did visit the property later after a member of the public alerted them again at about 7am. The incident has been referred to the Independent Office of Police Conduct (IOPC). One neighbour told the Eastern Daily Press: “Everyone is just really saddened about what has happened. No one can believe it. You don’t expect to be with a police cordon but they are just doing their job.”