Authorities say a 58-year-old man came home to find a 69-year-old man tied up and suffering from deep cuts. Three suspects who were still in the home then attacked the 58-year-old with a hatchet.
San Francisco Police Department Spokesperson Albie Esparza said, "It's extremely rare to see a hatchet used as a weapon in these home invasion robberies. It's a very medieval looking device, if you will. It's very barbaric."
Both victims suffered serious injuries and were taken to a local hospital. They are expected to be ok.
Police say the suspects are teenagers and have not yet been identified.