ST. JOSEPH, Mo. (AP) — The mother of a Missouri girl says in a lawsuit she filed that the St. Joseph public school district did not help her daughter when classmates bullied her and left her suffering from post-traumatic stress disorder.

Frances Keitz contends the bullying involved physical and verbal abuse, The Kansas City Star reported. She alleges that students threatened to kill her daughter or urged her to kill herself. She says it happened during the 2015-2016 school year while the girl was a student at Skaith Elementary School.

The girl, who is now 13, was diagnosed with PTSD, depressio...