US President Donald Trump's sweeping new travel ban barring nationals from 12 countries came into effect Monday after midnight amid mounting public anger over the administration's crackdown on immigrants.

Immigrant advocates do not anticipate the same level of mass protests that greeted Trump’s announcement of an immediate ban in January 2017 on travelers from some Muslim-majority nations.

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