The White House said it followed the court’s written ruling. The judge verbally instructed planes en route to turn around.
The justices requested responses by early April from the states and groups who had challenged the executive order.
A third appellate court has upheld a block on President Donald Trump’s executive order limiting birthright citizenship.
President Trump issued an order Thursday aimed at preventing taxpayer money from supporting immigrants without legal status. The order says it will end "all taxpayer-funded benefits for illegal ...