Maryland investigators are still looking into the cause of a raging fire at a home in Charles County that killed six people​, including four children.

Investigators say a disconnected smoke alarm with no battery was found in the basement of a Maryland home where six people — including four children — were killed in a weekend fire. The Office of the State Fire Marshal said the deadly blaze broke out Sunday morning,

Six people have been killed, including four children, after a massive fire burned down a home in Maryland. On Aug. 10, a home in Waldorf, located about 23 miles outside of Washington, D.C., caught fire with several people still trapped inside.