A senior U.S. diplomat in Cuba for negotiations on restoring long-frozen diplomatic relations met a group of dissidents on Friday, seeking to underline Washington's concern over human rights but irritating the island's communist government.

U.S. Assistant Secretary of State Roberta Jacobson, the highest-ranking U.S. government official to visit the island in nearly 40 years, held a breakfast meeting with the dissidents a day after talks with Cuban government officials. The State Department said it was an opportunity for Jacobson to exchange views and hear their perspectives.

But Havana has stressed that efforts to normalize ties should not be accompanied by what it sees as meddling in its internal affairs. Cuban officials expressed concern beforehand over the planned meeting, a U.S. official said.