Franklin state police said an 18-year-old man and a 42-year-old man physically assaulted each other during a domestic dispute.
The 18-year-old man, identified in online court dockets as Alec Tyler Streczywilk, was arraigned before district judge Andrew Fish on charges of aggravated assault, simple assault and harassment.
Streczywilk was lodged in the Venango County jail after failing to post $75,000 straight bail.
Police said more charges are pending following completion of their investigation.