Observers say closed channel over terrorist threat 'illogical' and a setback to long-standing relations with affected countries US President Donald Trump's travel ban on 12 countries and partial restrictions on seven others to guard against so-called foreign terrorists is a "nonsensical" bid,

President Trump's new ban on travel to the U.S. by citizens from 12 mainly African and Middle Eastern countries has taken effect amid rising tension over the president's escalating campaign of immigration enforcement.

The effort comes as the president has pursued extraordinary measures to curtail legal and illegal immigration.

The travel ban restricts citizens of 12 countries, with another 7 countries facing partial bans. Here's what to know.

President Trump signed a proclamation to ban travel from certain countries, citing national security risks. It's set to take effect at 12:01 a.m. Monday.

For people in countries like Afghanistan and Myanmar, the president’s order dimmed hopes for sanctuary in the United States.

President Donald Trump has signed an executive order banning citizens from 12 countries from entering the U.S. The order echoes Trump's Muslim ban.

The U.N. envoy to Myanmar is warning that the Southeast Asian country is on “a path to self-destruction” if the violence doesn’t end. Julie Bishop told the U.N.