Savannah area police arrested a 69-year-old in the shooting death of his wife of more than 40 years.

Savannah-Chatham Metropolitan Police Department officers arrested Robert M. Johnson Saturday in the death of 66-year-old Mary Ellen Johnson. He's charged with murder.

Witnesses told police the couple got into an argument that climaxed in the shooting. Mary Ellen Johnson was transported to Memorial Hospital where she died of her wounds.

Officers quickly apprehended Johnson after he left the residence following the shooting. Johnson was charged with murder and booked at the Chatham County Jail.

An investigation is ongoing.