The White House added the popular Caribbean countries of Antigua and Barbuda and Dominica to its travel ban this week restricting the entry of citizens from these nations into the U.S.

For American travelers, U.S. citizens with a valid passport can travel visa-free to each of the countries. Both Antigua and Barbuda and Dominica are currently classified under the State Department’s lowest Level 1 travel advisory, recommending Americans “exercise normal precautions” when visiting.

The two countries join more than a dozen others President Donald Trump added to the travel ban, an expansion of an original ban issued in June. The White House said in a statement the ban included “countries with demonstrated, persistent, and severe deficiencies in screening, vetting, and information-sharing to protect the Nation from national security and public safety threats.”

“It is the President’s duty to take action to ensure that those seeking to enter our country will not harm the American people,” the White House wrote in the statement. “The restrictions are country-specific in order to encourage cooperation with the subject countries in recognition of each country’s unique circumstances.”

The White House added the order “includes exceptions for lawful permanent residents, existing visa holders, certain visa categories like athletes and diplomats, and individuals whose entry serves U.S. national interests.”

The White House cited citizenship by investment programs without residency for the reason it added both Antigua and Barbuda and Dominica to its list of countries with “partial restrictions.”

In response to the new travel restrictions, the Ministry of Foreign Affairs for Dominica said it was “actively engaging” United States government officials to “obtain formal clarification on the scope of the measures, the basis on which they were taken and the specific implications for Dominican travellers, students, families and other legitimate holders of U.S. visas,” according to Dominica News Online. 

“The Government will continue to work closely with U.S. authorities to address any issues identified, to protect the interests of Dominican citizens and to ensure that accurate information is provided to the public,” the ministry wrote.

For its part, Antigua and Barbuda’s Prime Minister Gaston Browne told Antigua Newsroom the U.S. government’s interpretation of the country’s residency programs “does not reflect the present reality of our laws” and said the country was working to “clarify the matter, to present the full and accurate facts, and to begin the process of resolving this issue with a view to restoring normal visa access for citizens of Antigua and Barbuda.”

In addition to the Caribbean countries, partial restrictions were also added for Angola, Benin, Cote d’Ivoire, Gabon, The Gambia, Malawi, Mauritania, Nigeria, Senegal, Tanzania, Tonga, Zambia, and Zimbabwe.

Trump’s original ban included full entry limitations for residents of “high-risk” countries, including Afghanistan, Iran, Somalia, Sudan, Yemen, and more. The latest order added five new countries to that list, including South Sudan and Syria.