Mexico announced Monday, March 30, it will bring the pattern of deaths of its citizens in U.S. Immigration and Customs Enforcement (ICE) custody before the Inter-American Commission on Human Rights (IACHR) for the first time.

President Claudia Sheinbaum said the Mexican government will also send formal letters of complaint to U.S. authorities over what she called “deficient medical care” at the Adelanto Processing Center in San Bernardino County, where 47-year-old José Guadalupe Ramos-Solano died last week.

Ramos-Solano’s death on March 25 marks the 14th fatality of a Mexican national in ICE custody since the beginning of the year, Mexican officials said. His death was confirmed Monday by ICE, which said he was found unconscious and unresponsive at the Adelanto facility, located about 60 miles northeast of Los Angeles.

At a press conference in Los Angeles, Vanessa Calva Ruiz, director general of consular protection at Mexico’s Foreign Ministry, said the Adelanto center alone has seen four Mexican nationals die from apparent medical complications between 2025 and 2026, which constitutes evidence of a persistent pattern of structural deficiencies.

Mexican authorities said they will exhaust all legal and diplomatic avenues to expose problems inside U.S. detention centers. As part of that effort, Mexico plans to file an amicus curiae brief in support of a federal class-action lawsuit, L.T. Mesrobian, filed Jan. 26, 2026, against conditions at Adelanto.

That lawsuit, brought by Public Counsel and the Coalition for Humane Immigrant Rights (CHIRLA), alleges unsanitary conditions, punitive isolation, and restrictions on basic necessities at the facility, and seeks to hold ICE legally accountable for custody conditions.

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