The victims were two adults and four children, according to officials. There were nine residents who lived at the house; one adult escaped and two others were not home at the time of the fire. The origin of the fire remains under investigation, but there was no evidence of a criminal act, the Maryland State Fire Marshal said in a post on X.

Tragic Waldorf Fire Claims Six Lives, Including Four Children DSFMs, @ATFBaltimore, @CCSOMD worked throughout the day Sunday to determine the cause of a devastating Sunday morning fire in Waldorf. More information, including OSFM news release https://t.co/raeHc8KMRr pic.twitter.com/yTjuLPZNoB

Deputies attempted to enter the home but could not due to heavy smoke and flames,” the Office of the State Fire Marshal said.