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.

President Donald Trump's sweeping new travel ban which bars citizens of twelve 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,

The travel ban forms part of Trump's policy to restrict immigration into the United States and is reminiscent of a similar move in his first term