Olympic gold-medalist skier Picabo Street has been charged with assault and domestic violence after authorities say she pushed her father down the stairs in a Utah home in December.

Street told police she locked her 76-year-old father in the basement of a Park City house after pushing him and then called authorities, according to charging documents released Wednesday. She says her father, Roland Street, pulled her hair in the December 23 fight at a house near Park City that police say Street’s three children witnessed.

Roland Street told police his daughter got angry and started yelling after he bumped his car into the house while trying to leave, documents show. When the two went inside the house, a physical altercation broke out.

He says his daughter grabbed him in the shoulder and neck area and pushed him down two flights of stairs. He said he may have hit his head. Police observed cuts on Roland Street’s elbow & neck.

Picabo Street, 44, was arrested and bailed out. She was charged by prosecutors about two weeks later with three counts of misdemeanor domestic violence in the presence of a child and one count of misdemeanor assault.

Her attorney, Jason Richards, said she denies any wrongdoing in what she considers a private family matter. He said Picabo Street is hopeful an “amicable resolution” can be reached.