President Donald Trump’s sweeping new travel ban which bars citizens of 12 countries from entering the United States came into effect at 00:00 ET (05:00 BST) on Monday.
The order, which Trump signed last week, restricts the nationals of Afghanistan, Myanmar, Chad, Congo-Brazzaville, Equatorial Guinea, Eritrea, Haiti, Iran, Libya, Somalia, Sudan and Yemen from entering the US.
Nationals from a further seven countries – Burundi, Cuba, Laos, Sierra Leone, Togo, Turkmenistan and Venezuela – will face partial travel restrictions.
The US president said the list could be revised if “material improvements” were made, while other countries could be added as “threats emerge around the world”.
There are a number of people from affected countries who may still be able to enter the US due to a number of exceptions.