The family of a Sri Lankan woman who died after being detained for overstaying her student visa was left unconvinced Monday by an explanation of her death given to them by officials of the central Japan immigration facility where she was held.

The family of Ratnayake Liyanage Wishma Sandamali, 33, who died March 6 after complaining of stomach pain and other symptoms from mid-January, visited the Nagoya Regional Immigration Services Bureau in Aichi Prefecture to hear in person from the head of the facility and see the conditions under which she was held.

Photo shows the family and supporters of Ratnayake Liyanage Wishma Sandamali with her portrait on their way to the Nagoya Regional Immigration Services Bureau in Aichi Prefecture on May 17, 2021. (Kyodo)

Her death, which activists blame on a failure to provide appropriate medical attention, has been cited as evidence of problems riddling Japan's immigration and asylum system, particularly with regard to the indefinite detention of foreign nationals facing deportation.

Speaking to reporters after meeting with the facility's head, the family said they felt as if the immigration agency was "running away from the truth."

The officials offered condolences and said they viewed Wishma's death as a serious issue but did not give "convincing answers," the family's lawyer, who accompanied them, said.

The family also visited the single-person cell where Wishma was held, describing it as "small and as if for an animal."

Wishma was detained in August last year at the Nagoya facility for overstaying her visa. The Justice Ministry did not determine the cause of her death in an interim report on the incident released April 9.

Justice Minister Yoko Kamikawa and Shoko Sasaki, commissioner of Japan's Immigration Services Agency, are scheduled to meet the family on Tuesday at the request of the family for a detailed explanation of her death, according to a source familiar with the matter.

A lawyer representing the family said the meeting with the justice minister is set for 6 p.m. Tuesday at the Justice Ministry in Tokyo.

Opposition parties have taken up Wishma's case as parliament debates a controversial bill to revise the immigration law that activists believe will worsen conditions for asylum seekers, and several opposition lawmakers also made a separate visit to the facility on Monday.

Critics say the proposed legal revisions will violate the principle of non-refoulement -- or not returning asylum seekers to the country they have fled from. They have also slammed it for continuing to maintain detention for those facing deportation as a principle instead of being an exception or last resort, although provisional release can be granted in some circumstances at the discretion of immigration officials.

A rally is held on April 15, 2021, in front of the parliament building in Tokyo to protest a controversial bill to revise the immigration law. (Kyodo)

A university graduate and English teacher in her home country, Wishma entered Japan in June 2017 on a student visa planning to teach English to children in Japan, according to her family, the ministry's interim reports, and supporters.

Her mother has told Kyodo News that she was "worried about sending a girl alone overseas" but thought "it would be okay in a safe country like Japan."

Wishma attended a Japanese-language school in Chiba Prefecture near Tokyo but her attendance started flagging from early 2018, according to her teachers. As remittances from her family stopped, she also failed to pay her tuition. The school ultimately expelled her, notifying the immigration services agency in Tokyo that she had lost her student status.

Meanwhile, Wishma had moved in with a Sri Lankan man in the central Japan prefecture of Shizuoka, according to the interim report and supporters, while finding work making bento meals.

But in August 2020, she sought police protection after accusing the man of domestic violence, with only 1,350 yen ($12) to her name. Her illegal immigration status was discovered at this time, and she received a deportation order.

Wishma was terrified of her former partner, according to Yasunori Matsui, who belongs to START, a support organization for foreign workers and refugees that had been meeting with her since December 2020.

She received a threatening letter from him and feared he might kill her even if she returned home to Sri Lanka, Matsui added.

She initially thought that the immigration agency was a shelter and would protect her, Matsui said.

Wishma's weight dropped by around 20 kilograms after half a year in detention. In late December, she applied for provisional release, but the request was denied in mid-February. She started complaining of stomachaches, nausea and loss of appetite from mid-January.

"I am not well at all. Please help me," she wrote to Akemi Mano, 67, a local resident who had become involved in her case and who was planning to take her in if she were released. "I don't want to bother you but I have no one else who cares about me," Wishma wrote.

Supporters kept demanding that immigration authorities get her medical attention or grant her provisional release, but their requests were denied.

At the end of February, Wishma requested provisional release again, saying that she wanted to be treated at a hospital, but her application was again denied.

Her supporters said Wishma used a wheelchair and that when they last met her on March 3 at the immigration center, there was foam around her mouth and her fingers were stiff. They said her eyes appeared hollow.

A psychiatrist who saw Wishma on March 4 recommended she should be granted a provisional release, saying in a report to the Nagoya immigration center that her condition would improve if she were released, according to sources familiar with the matter.

The sources also said the immigration authority suspected Wishma was feigning illness to gain provisional release and conveyed this view to the psychiatrist.

Developing esophagitis, the woman underwent an endoscopy at a hospital outside the immigration facility. On March 6, she became unresponsive and was rushed to a hospital, where she was pronounced dead later in the day.

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