HAVANA -- Cuba says it will hold a new round of talks with the U.S. on May 21 in an attempt to remove barriers to the reopening of embassies in Washington and Havana.

The talks will be held in Washington, Cuba's Foreign Ministry announced Thursday. The two sides have been negotiating for nearly five months over the conditions for re-establishing diplomatic relations under a deal announced by Presidents Raul Castro and Barack Obama on Dec. 17.

The talks have been hung up on disagreements over U.S. diplomats' ability to import uninspected embassy supplies and travel in Cuba without restrictions and meet citizens including dissidents.

Castro said this week he expects ambassadors to be named after Cuba is taken off the U.S. list of state sponsors of terrorism at month's end.