She says Bentley, 22 months old, bumped his head while struggling.

A North Dakota woman accused of killing her toddler son allegedly told authorities the boy hit his head as she was struggling with him to change his diaper.

Twenty-eight-year-old Jodi Lindvall, of Fort Ransom, is charged with murder and child abuse in the September death of 22-month-old Bentley Lindvall. She could face up to life in prison if convicted.

The Forum newspaper reports ( ) court documents indicate Lindvall told investigators that during the diaper-change struggle with her son, his head fell back and struck the floor. Medical staff told state crime bureau agents that the boy suffered life-threatening head trauma before being brought to the hospital.

A state crime agent says in court documents that the boy also had "numerous suspicious bruises and healing fractures."