WASHINGTON (AP) — The Supreme Court on Wednesday refused to allow Florida to enforce an immigration law making it a crime for people who are living in the U.S. illegally to enter the state. The high court’s action will keep the law on hold while a legal challenge continues. The court did not explain its decision and no justice noted a dissent.

The case, brought by immigrant advocacy groups, raises questions about whether and how states can police illegal immigration.

The state of Florida cannot enforce a controversial new law aimed at preventing undocumented immigrants from entering the state, the U.S. Supreme Court said Wednesday. Why it matters: The high court's rejection of the state's emergency appeal leaves in place a lower court's decision to pause the law while legal challenges continue.