DALLAS (AP) — The husband of a business consultant detained for more than a year by Chinese authorities says her treatment amounts to torture.

Jeff Gillis said Friday that Phan “Sandy” Phan-Gillis is in failing health and her suffering meets the United Nations’ definition of torture.

The State Department last month said Chinese authorities informed the U.S. they will bring a legal case against the 56-year-old consultant. U.S. officials have urged China to resolve the case in a manner that respects international human rights.

Phan-Gillis was detained in March 2015 while traveling with a trade delegation promoting business opportunities in her hometown of Houston.

A U.N. panel reported in July that the Chinese government told it that Phan-Gillis is charged with “assisting external parties to steal national intelligence.”