Some 100 demonstrators protested in the Tunisian capital Tunis on Thursday against a visit by US Secretary of State Hillary Rodham Clinton, DPA reported
"We don't want outside interference," protesters wrote on banners.
Clinton was in the country, where long-time president Zine El Abidine Ben Ali was toppled by mass protests two months ago, to discuss Tunisia's new political landscape.
The fate of 100,000 refugees who have crossed the border from Libya was reportedly also a topic of discussion.
Earlier this week, Clinton had visited Egypt, where she promised that the United States would help that country on its road to greater freedom and democratic elections.
The US foreign policy chief also encountered some antipathy there, when the January 25th coalition - an association of six youth groups that took part in organizing the protests that led to president Hosny Mubarak's resignation in February - refused to meet with her.
"The American administration supported Mubarak politically. Plus the majority of tear gas that was thrown at the Egyptian revolutionaries was made in America," its spokesman, Khaled Abd el Hamid, said.