(Philomath, OR) -- An investigation is ongoing into a house fire that killed a 72-year-old man in Philomath. Firefighters responded to blaze on Main Street Friday morning. Crews found the man inside the burning home and pulled him out. He was immediately pronounced dead. Police are working to verify his cause of death. Officials say no one else was inside the home. It's not yet clear what led to the fire. The incident left Highway 20 shut down for about two and a half hours.