US President Donald Trump's order banning citizens of 12 countries from entering the United States goes into effect at 12:01 am ET (0401 GMT) on Monday, a move the president promulgated to protect the country from "foreign terrorists."
The countries affected by the latest travel ban are Afghanistan, Myanmar, Chad, Republic of the Congo, Equatorial Guinea, Eritrea, Haiti, Iran, Libya, Somalia, Sudan and Yemen, Reuters reported.
The entry of people from seven other countries - Burundi, Cuba, Laos, Sierra Leone, Togo, Turkmenistan and Venezuela - will be partially restricted.
Trump, a Republican, said the countries subject to the most severe restrictions were determined to harbor a "large-scale presence of terrorists," fail to cooperate on visa security, have an inability to verify travelers' identities, as well as inadequate record-keeping of criminal histories and high rates of visa overstays in the United States.
Officials and residents in countries whose citizens will soon be banned expressed dismay and disbelief.
Chad President Mahamat Idriss Deby Itno said he had instructed his government to stop granting visas to US citizens in response to Trump's action.
Afghans who worked for the US or US-funded projects and were hoping to resettle in the US expressed fear that the travel ban would force them to return to their country, where they could face reprisal from the Taliban.
Democratic US lawmakers also voiced concern about the policies.
"Trump's travel ban on citizens from over 12 countries is draconian and unconstitutional," said US Representative Ro Khanna on social media late on Thursday. "People have a right to seek asylum."