A 33-year-old pregnant woman and her toddler son were found shot to death in a home in northern Idaho, authorities said.

Deputies responded at about 8:30 p.m. Wednesday to a report of a death at the home, Shoshone County Sheriff Holly Lindsey announced on Facebook. There they found the bodies of Elizabeth Lawley and her 2-year-old son.

Both had gunshot wounds, and a preliminary investigation indicates that Lawley shot and killed the boy and then herself, according to the sheriff.

News outlets reported that the sheriff said Lawley had been pregnant.