US visa sanctions

US to sanction visas for citizens of four countries

The new policies, laid out in US State Department cables sent on Tuesday, are the latest example of President Donald Trump's effort to crack down on immigrants who are in the country illegally.

In each case, there are exceptions for those who apply for visas from outside their countries, as well as exceptions on humanitarian grounds or for travel "deemed in the interest of the United States".

The new rules, which go into effect on Wednesday, do not affect visas that have already been granted.