A 10-year-girl who died after returning to live with her violent father had been diagnosed as suffering from post-traumatic stress disorder (PTSD) when she was in temporary protective custody in 2017, sources said.

A doctor concluded that Mia Kurihara, an elementary school girl who lived in Noda, Chiba Prefecture, developed PTSD likely as a result of the abuse inflicted by her father, Yuichiro, 41.

That diagnosis appeared in a report found at the Noda municipal government office, the sources said Feb. 10. It was based on a report compiled by the Chiba prefectural Kashiwa child welfare center on a meeting about whether to return Mia to her family.

The center lifted the temporary custody order on Dec. 27, 2017, under the condition that the girl would live with her paternal relatives until her fear of her father was reduced.

“We should strictly prevent Mia from seeing her father for a certain period of time … because Mia has been diagnosed with PTSD,” the report said.

The center reported its recommendation to the Noda municipal government.

Mia was placed in temporary protective custody after she begged a teacher for help in an elementary school questionnaire in early November 2017 when she was a third-grader.

“My father is using violence against me. Could you do something about it?” Mia wrote.

When Mia was living with her relatives, Yuichiro protested furiously during an interview with Kashiwa center staff on Feb. 26, 2018.

He showed the staff a letter from Mia that expressed her desire to return to her family and said in part, “It is not true that my father beat me.”

Yuichiro told the center officials, “I will take (Mia) back today.”

Although the girl later told a staff member that her father forced her to write the letter, the Kashiwa center on Feb. 28 that year allowed Yuichiro to take Mia home.

Mia was found dead at the home in Noda on Jan. 24 this year.

Yuichiro and his wife, Nagisa, 31, have been arrested on suspicion of causing injuries to the girl.

Hitoshi Nihei, head of the Kashiwa child welfare center, referred to the decision to return Mia to her parents at a news conference in Chiba on Feb. 5, “We concluded there was no recurrence of his physical abuse.”