OSAKA--Two young children died after being abandoned by their mother in a garbage-filled Osaka apartment, despite repeated calls to child welfare officers from a neighbor reporting the children's cries.
The officials visited the apartment on five occasions between March and May but made no attempt to enter or contact the police.
The partly decomposed and skeletonized remains of 3-year-old Sakurako Hagi and her brother Kaede, 1, were discovered in the apartment in Nishi Ward on Friday morning.
Police said they may have starved to death and had been dead for a month or two. They were not wearing any clothes.
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"I knew they wouldn't be able to survive if not given food or water. I abandoned them and killed them as a result," she was quoted as saying.
There were traces of adhesive tape on the door leading to the hallway. Police said it may have been used to shut the children in.
The reports to welfare workers were made before Shimomura said she left the apartment. Between March and May, an anonymous neighbor contacted the Osaka municipal child consultation center three times to report that children were crying almost every night.
The first phone call was made at around 9 a.m. on March 30. The woman said children were screaming "Mama, mama," via a door intercom late into the night.
Two welfare officials visited the home at 3 p.m. the next day, and again around 10 a.m. on April 1 and 6 p.m. on April 2. No one responded.
The second report came from the same woman at around 7 a.m. on April 8. Officials visited around 2 p.m. the next day but, again, there was no response from inside the apartment.
The third report of children crying came around 5:30 a.m. on May 18. The welfare workers visited around 3 p.m. that day, but were unable to make contact with anyone inside the apartment.
Welfare ministry guidelines say officials should confirm a child's safety within 48 hours of receiving a report of possible abuse.
The center's workers were unable to find an entry in the register of residents for the apartment, which was rented by Shimomura's employer. They said they were unable to contact relatives because they did not know who lived there. They did not contact the police.
Officials said the situation did not seem urgent because they had not heard any calls for help or had any report that children were being abused.
They did not talk to neighbors to further investigate the reports because they were "concerned that would sour relations with the guardian."
The chronology of the children's deaths is unclear but they may have died after the reports to the welfare office. A neighbor said the children's cries had stopped about a month ago and a man living next-door said he noticed a bad odor coming from the apartment in July.
Some experts say the welfare officials could have saved the children following the reports from neighbors. Under a change to the law in April 2008, child guidance center officials can get a court warrant to enter a home to protect a child without a guardian's consent.
But, in fiscal 2008, the step was taken in only two out of 42,664 cases in which officials dealt with reports of abuse. It was only taken once out of 44,210 cases in fiscal 2009.
Some officials in urban areas say applying for the warrants is complicated and time-consuming and often not practically possible given their heavy workloads.
Tetsuro Tsuzaki, a professor of child welfare at Hanazono University, said the current system should be reviewed because its "hurdle is too high." But he questioned why the officials involved in the case had not collected information by talking to neighbors or asked the apartment's janitor to give them access.