Thames Valley Police was called to a report of a serious assault on Sunday
Officers attended an address in Chicheley Street, Newport Pagnell at around 12:45pm on Sunday (24/3).
Two victims, a 79-year-old woman and an 86-year-old man had sustained serious injuries.
Both victims were taken to hospital where they currently remain in a serious condition. A road closure was put in place on Chicheley Street while officers attended the incident and a scene watch is currently in place.
A 46-year-old man was arrested on suspicion of attempted murder and is currently in police custody.