The Supreme Court on Monday lifted a federal judge’s order prohibiting government agents from making indiscriminate immigration-related stops in the Los Angeles area that challengers called “blatant racial profiling.”

The court’s brief order was unsigned and gave no reasons. It is not the last word in the case, which is pending before a federal appeals court and may again reach the justices.

The court’s three liberal members dissented.

In the near term it allows what critics say are roving patrols of masked agents routinely violating the Fourth Amendment and what supporters say is a vigorous but lawful effort to enforce the nation’s immigration laws.

The lower courts had placed significant restrictions on President Trump’s efforts to ramp up immigrant arrests to achieve his pledge of mass deportations. Aggressive enforcement operations in Los Angeles — including encounters captured on video that appeared to be roundups of random Hispanic people by armed agents — have become a flashpoint, setting off protests and clashes in the area.

Civil rights groups and several individuals filed suit, accusing the administration of unconstitutional sweeps in which thousands of people had been arrested in what they described in the suit as “indiscriminate immigration operations” that had swept up thousands of day laborers, carwash workers, farmworkers, caregivers and others.

“Individuals with brown skin are approached or pulled aside by unidentified federal agents, suddenly and with a show of force,” the complaint said, “and made to answer questions about who they are and where they are from,” violating the Fourth Amendment’s prohibition of unreasonable searches and seizures.