A 23-year-old man from Innisfil was charged with three counts of assault with a weapon after a fight on Saturday night in Alcona.
Police say they got to the house just after 10:30 p.m. and found three people with serious injuries – one of them being the accused.
He allegedly started a fight in the home which led to the injuries as well as damage to the house.
Police will not reveal what weapon the man used.