PORT-AU-PRINCE, Haiti - U.S. Secretary of State Hillary Rodham Clinton says Cuba should take the next step in relations with the new American government.

Clinton calls President Barack Obama's easing of travel restrictions to Cuba a "very significant" step.

Now, she says the Castro government should "reciprocate."

She said the U.S. is willing to discuss additional steps, but would first like to see Cuba release political prisoners and lift restrictions on the media.

Cuba's communist government had no immediate reaction.

But President Raul Castro has said he is willing to negotiate with Obama on neutral ground as equals and without conditions.

Clinton made her comments Thursday while stopping in Haiti on the way to the Summit of the Americas, a gathering of democratic countries where Cuba is not invited.