"Japan should also refrain from imposing prolonged solitary confinement and take all appropriate measures to ensure that immigrants are not mistreated."
The UN committee issued findings on Japan on Thursday.
その国連の委員会は発表しました、日本についての審査結果を、木曜日に。
The report says the committee is concerned "at the alarming reports of suffering due to poor health conditions" in Japan's immigration detention facilities.
Three detainees died while in detention between 2017 and 2021. Last year, a Sri Lankan woman died at a detention facility in central Japan after complaining of illness.