Police responded to a 9-1-1 call for dispute on the 900 block of Wilhem Street around 9:10 p.m.
When Zone 6 officers arrived, they were met by an adult male who stated his father assaulted him with a knife. Officers observed cuts on the victims arm and chest.
The victim was checked by medics, but refused treatment.
The suspect barricaded himself inside of the home shortly after officers arrived.
SWAT was called as an abundance of caution. Negotiators encouraged the suspect to safely exit the residence after speaking with him for over an hour. The suspect surrendered without incident and was taken into custody.
Tonight, the City-County Building is illuminated to recognize Poison Prevention Week and the 50th Anniversary of "Mr. Yuk" in partnership with Children's Hospital of Pittsburgh of UPMC.
For questions about the lighting at the City-County Building, please reach out to the Office of the Mayor.