A house fire in Montgomery County turned deadly as firefighters battled the blaze Thursday morning.The fire broke out inside a home on the 900 block of Bellaire Avenue in Upper Dublin Township around 4:30 a.m.Officials confirm one person was killed in the fire. Their age and identity have yet to be released.MORE HEADLINES:Fire crews were able to rescue a man in his 30s from the home, and rush him to the hospital. His condition is unknown.The cause of the fire is under investigation. Read this story