MEXICO CITY (AP) — Mexico formally requested that U.S. state attorneys general criminally investigate cases of migrants who have died in Immigration and Customs Enforcement custody or during raids, the Mexican government said Tuesday.The request follows the death of Mexican immigrant Lorenzo Salgado Araujo, who was shot and killed by an ICE agent in Houston. Since the beginning of U.S. President Donald Trump’s second term, 17 Mexican migrants have died during immigration enforcement, 14 in ICE custody and three in agency operations.Mexico’s Foreign Ministry had previously said it would make the request, which was formalized on Tuesday, according to the ministry. It said a similar request will be also sent to the U.S. Department of Justice.The United States is not legally obliged to act on the requests.Also, the Mexican government said it has started sending letters to U.S. detention centers where Mexican migrants have died, demanding they “immediately cease the actions or omissions that resulted in these deaths, such as preventing access to prompt and expedited medical care, as well as the application of policies incompatible with medical and penitentiary standards.” The first center to receive the letter was Adelanto, in California, where four Mexican migrants died.