President Donald Trump announced a total ban Wednesday on the entry of Haitian nationals into the United States and partially limited Cubans and Venezuelans from coming into the country, as part of a broader travel ban affecting several other nations.

The latest ban is expected to lead to chaos and disruption in communities already facing precarious circumstances, including Haiti, Cuba and Venezuela.

President Donald Trump has banned citizens of 12 countries from entering the United States and restricted access for people from seven others.