WASHINGTON — The United States and Cuba will start talks this month on resuming direct mail service between the two countries for the first time in nearly half a century as the Obama administration continues to try to engage the communist island, U.S. officials said today.

The negotiations, set for Sept. 17, will follow the resumption in July of talks on the legal immigration of Cubans to the U.S., according to the officials. The two sides agreed on the two sets of discussions in late May, a month after President Barack Obama eased travel and financial restrictions on Americans with family members in Cuba.

The officials spoke on condition of anonymity because details of the negotiations are not yet completed.

Direct postal service between the United States and Cuba was terminated in 1963 and since then mail has had to go through third countries. Previous attempts to restore the link have failed and experts believe Cuba's communist government remains sensitive about what kind of material might be sent to the island from the United States.

Obama wants to improve relations with Cuba and has taken several steps to gauge the Cuban leaderships' interest in doing so, including supporting a recent decision by the Organization of American States to revoke Cuba's 1962 suspension from the 34-country group.

But he has also said the U.S. embargo on the country enacted in 1960 will not be lifted until Cuba enacts democratic and economic reforms, such as freeing political prisoners and allowing freedom of speech.

By The Associated Press