A man called the Butte County Sheriff's Office around 8:45 Tuesday night saying that he had not heard from his sister in over a week. He said that he was at his sister's residence in the area of Yellow Hammer Drive and Tyme Way where he described a smell coming from the driveway. He then opened a window and said he could see her lying on the floor. Deputies arrived and entered the home where they reportedly found three deceased individuals. The deaths are under investigation. Anyone with information is encouraged to contact the Butte County Sheriff's Investigations Unit at 538-7671.