The law signed by Gov. Ron DeSantis makes it a state crime to enter Florida after coming into the United States illegally and to re-enter the state following deportation.

Supreme Court blocked Florida on Wednesday from enforcing a law that would make it a crime for undocumented migrants to enter the southern state. A federal district judge had put the law on hold in April on the grounds it constituted state interference with federal immigration policy.

Under the law, known as SB 4-C, anyone who “knowingly enters or attempts to enter [Florida] after entering the United States by eluding or avoiding examination or inspection by immigration officers” can be convicted of a first degree misdemeanor.