The Trump administration has launched an investigation into a California state-level program that provides aged, blind and disabled non-citizens with monthly cash benefits.

The U.S. Department of Homeland Security said Monday that it is investigating the California Cash Assistance Program for Immigrants (CAPI) for allegedly providing benefits to migrants who are in the United States illegally.

Immigration and Customs Enforcement’s Homeland Security Investigations Los Angeles field office issues a Title 8 subpoena to California’s Cash Assistance Program for Immigrants.