Three children are in hospital with stab wounds after police were called to a home on Monday morning.
A neighbour told Yorkshire Live she had seen a number of ambulances at the scene this morning. The woman, who had not been named, said: "I saw loads of ambulances, doctors and police cars. I saw blue lights and heard sirens - I thought there had been a shooting or something."
DCI Sam Freeman of the Homicide and Major Enquiry Team, said: “Enquiries are ongoing today into what has clearly been a serious and distressing incident in Huddersfield and we fully appreciate the concern it will cause in the local community. “Detectives are conducting enquiries to determine the exact circumstances of what has taken place and an arrest has now been made as part of those investigations.”
Chief Inspector Rebecca Calpin of Kirklees Police, said: “Reassurance patrols are taking place in the local area by officers from the Huddersfield Neighbourhood Policing Team and will be continuing throughout the day as Kirklees officers work to support colleagues from our HMET team.”