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.

People from a dozen countries will soon be barred from entering the U.S., while those from seven others face expanded travel conditions, after President Donald Trump signed a travel ban on Wednesday.

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