Washington - President Barack Obama says Burundi isn't making enough progress toward establishing rule of law and will be removed from a US trade preference programme for African countries.
The African Growth and Opportunity Act provides duty-free treatment to US imports of certain products from eligible sub-Saharan countries.
In a letter to lawmakers, Obama cites a worsening crackdown on opposition members, including assassinations, by Burundi's government as the basis for his decision to delist the country on January 1.
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The Burundi government has also blocked opposing parties from holding organisational meetings and campaigning.
President Pierre Nkurunziza's decision in April to seek a controversial third term, which he won, has sparked killings and arrests.
More than 200 000 people have fled the East African country as a result.