WASHINGTON (AP) - President Donald Trump says U.S. Secretary of State Mike Pompeo is returning from North Korea with three Americans who had been detained in North Korea. 

Trump has been hinting about the possible release of the three men.  On Twitter, the president said the men appear to be in good health. 

Pompeo met with the North's leader, Kim Jong Un to finalize plans for a historic summit with Trump. The tweet said the time and date have been set. But it did not say when and where. 

The trip is Pompeo's second to North Korea this year.  The trip had not been publicly disclosed when he flew out of Washington under cover of darkness late Monday aboard an Air Force 757.

The president said Pompeo and the men will arrive at Andrews Air Force Base at 2 a..m, and he plans to greet them. 

Trump announced the mission Tuesday afternoon as he laid out the case for withdrawing from a landmark nuclear deal with Iran, another bitter U.S. adversary.

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