The Trump administration has transferred hundreds of immigrants to El Salvador even as a federal judge issued an order temporarily barring the deportations under an 18th century wartime declaration targeting Venezuelan gang members,

Hundreds of mostly Venezuelan alleged gang members were deported from the United States to a prison in El Salvador on Sunday, with the Trump administration invoking wartime powers to speed up removals despite a court ruling halting the move.

The White House said it followed the court’s written ruling. The judge verbally instructed planes en route to turn around.

The administration won’t identify those moved — or say whether the Alien Enemies Act, which briefly sped up some deportations, played any role.