BALTIMORE — Baltimore Police have arrested a woman in a triple shooting that left a man dead and two women, including one who was pregnant, injured.

Police Commissioner Kevin Davis said at a news conference Tuesday that 30-year-old Marion Daughton of Baltimore was arrested Tuesday and charged with first-degree murder, murder and other offenses.

Online court records do not list a lawyer for Daughton.

The Baltimore Sun reports ( that officers say Daughton opened fire on the man and two women after an argument early Monday with at least one of them. Davis says a 23-year-old woman who was pregnant when she was shot delivered a baby Monday and the infant is doing well. Both women suffered non-life-threatening injuries.

The 34-year-old man was pronounced dead at a hospital.

Information from: The Baltimore Sun,