The president also placed travel restrictions on an additional list of countries as he reintroduced a controversial immigration policy that came to define the early days of his first term.

The travel ban results from a Jan. 20 executive order Trump issued requiring the departments of State and Homeland Security and the director of national intelligence to compile a report on “hostile attitudes” toward the U.S. and whether entry from certain countries represented a national security risk.

On Wednesday, President Donald Trump announced a travel ban on citizens entering the U.S. from 12 countries, along with severe restrictions on those traveling from seven additional nations.