WALDORF, Md. (AP) -- Authorities say a Waldorf man fatally shot his two daughters at their home before turning the gun on himself.

The Charles County Sheriff's Office said in a statement that officers called to the family's townhome Thursday night for a report of shots fired found the man's 36-year-old wife wounded outside.

Inside officers found 37-year-old Carlton Goodwin dead in the living room. Officials say he had an apparent self-inflicted gunshot wound and a gun was beside him. His daughters, 4-year-old Laila and 17-year-old Lashelle, were found upstairs. The younger girl was dead. The older girl was taken to a hospital, but later died. Their mother was flown to a hospital with serious injuries.

Officials believe Goodwin shot his wife and their daughters, then himself, but they say it's not clear why.