U.S. Marshals have arrested an Austintown woman, who along with a relative a charged in a case described by a school resource officer as the worst case of child abuse she had ever seen.

Sixty-year-old Gloria Betts was booked into the Mahoning County jail Wednesday on two counts each of obstructing official business and endangering children.

A county grand jury indicted her along with 33-year-old Jeremy Betts, who faces four counts of child endangering.

The charges stem from an investigation that began in January when police were called to Austintown Elementary School where a five-year-old girl and her seven-year-old sister were found to have whip marks on their bodies.

The younger girl had multiple "whip" marks on her arms, legs, back, chest and neck.

The seven-year-old told a counselor she had a mark on her buttocks.

Police went to their Edinburg Drive home and arrested Betts, who allegedly had been using a phone charging cord to discipline the children.

One of them was allegedly being punished for misbehaving in school.

Upon investigation, another child who was in the home at the time of the beating told police that she heard the incident and counted more than 60 lashes delivered to one of the girls.

The indictment accuses Gloria Betts of obstructing police in their investigation into the incident. Also, the indictment says she created a "substantial risk" by violating a "duty of care, protection, or support."

A police report said Gloria Betts allegedly instructed the victims to say that she had caused the injuries since Betts had "just been released from prison."