Tzaneen - A woman was killed, and another injured when they were attacked by a hippo while fishing in the Nwanedzi River, near Tzaneen, Limpopo police said on Tuesday.Lieutenant Colonel Moatshe Ngoepe said the pair was attacked on Monday.The 50-year-old woman, who is a Zimbabwean national, died at the scene.Her friend, a 57-year old from the nearby Nkambako village suffered multiple injuries.