The Supreme Court on Monday allowed the Trump administration’s revised travel ban to be enforced while legal challenges proceed in the lower courts.

The court’s opinion is “a substantial victory for the safety and security of the American people,” said Attorney General Jeff Sessions in a statement. “We are pleased to have defended this order and heartened that a clear majority Supreme Court has allowed the president’s lawful proclamation protecting our country’s national security to go into full effect.”

The Trump administration’s latest travel ban bars people from entering the U.S. from Syria, Libya, Iran, Yemen, Chad, Somalia, North Korea and Venezuela. The administration crafted the latest travel ban earlier this year after courts ruled that the previous two versions were unconstitutional attempts to ban Muslims from the country and violated the Constitution.

Federal judges in Maryland and Hawaii had blocked implementation of the ban for travelers from those countries who have a “bona fide relationship” with a person or entity in the U.S. Those injunctions were lifted in the Supreme Court opinion issued this week, without any disclosure of the court’s reasoning.