HARRISON — A Harrison woman was arrested and charged with murder Friday in the death of her infant son.

Pamela Henderson, 43, was arrested by Maine State Police detectives after a Cumberland County grand jury handed up an indictment earlier in the day.

Henderson is charged in the death of her 3 1/2-month-old son, Zachary. The infant died at Henderson’s Mill Street home March 5. The cause of death has not been disclosed.

Henderson is being held at the Cumberland County jail. She is expected to make her first court appearance Monday or Tuesday.