Fairfield Assistant Fire Marshal Jerry Clark says when fire crews reached the single-story fourplex around 9:10 p.m. Wednesday they found three of the children dead at the scene.
The fourth child was rushed to a hospital but died there from injuries.
Clark says two adult females were burned in the fire. One suffered burns to her hands. He did not know the extent of the injuries to the second adult.
Fire officials say they don't yet know the ages of the dead and injured or if they were related.
The cause of the fire is under investigation.
Article source: latimes.com