Responding to Seattle Federal Judge Judge James Robart, US President Donald Trump on Saturday morning tweeted, "When a country is no longer able to say who can, and who cannot , come in & out, especially for reasons of safety &.security — big trouble!"

"Interesting that certain Middle-Eastern countries agree with the ban. They know if certain people are allowed in it's death & destruction! The opinion of this so-called judge, which essentially takes law-enforcement away from our country, is ridiculous and will be overturned!" he tweeted.

In his written order, Robart said U.S. officials should stop enforcing the key aspects of the ban, including the halting of entry by refugees and citizens from certain countries. However, he did not mention what would happen to those whose visas were already revoked.

The US State Department said, "Those individuals with visas that were not physically cancelled may now travel if the visa is otherwise valid."

100,000 visas were revoked during Trump's week-long ban.

Immediately after Robart released his ruling, the US Customs and Border Protection began to lift the ban and allow previously barred individuals to board flights to enter the US.

The White House also announced the Justice Department would file an emergency appeal to cancel Robart's "outrageous" ruling.

"The president’s order is intended to protect the homeland and he has the constitutional authority and responsibility to protect the American people," the White House statement said.