U.S. President Donald Trump (1st L), his wife Melania Trump (1st R) welcome Kim Dong-chul, Kim Hak-song and Tony Kim back to the United States at Joint Base Andrews in Washington D.C., the United States, May 10, 2018. Three U.S. citizens that were just freed by the Democratic People's Republic of Korea (DPRK) arrived in Washington early Thursday, as the two countries saw their ties warm up in recent weeks. (Xinhua/Shen Ting)

WASHINGTON, May 10 (Xinhua) -- Three U.S. citizens that were just freed by the Democratic People's Republic of Korea (DPRK) arrived in Washington early Thursday, as the two countries saw their ties warm up in recent weeks.

A plane carrying the three U.S. detainees arrived at Joint Base Andrews shortly before 3 a.m. local time (0700 GMT), minutes after another plane carrying Secretary of State Mike Pompeo, who helped bring the detainees back, landed.

The three detainees, named Kim Hak-song, Tony Kim, Kim Dong-chul, are all U.S. citizens of Korean descent. They were arrested by DPRK authorities in 2015 and 2017 on different charges.

Photo provided by the Korean Central News Agency (KCNA) on May 10, 2018 shows Kim Jong Un (R), top leader of the Democratic People's Republic of Korea (DPRK), shaking hands with visiting U.S. Secretary of State Mike Pompeo on May 9, 2018. Kim Jong Un expressed confidence that his upcoming summit meeting with U.S. President Donald Trump would be a historic one. (Xinhua/KCNA)

Pompeo, who has visited Pyongyang twice in recent weeks to pave the way for an upcoming meeting between DPRK top leader Kim Jong Un and U.S. President Donald Trump, secured their release Wednesday.

To fully capitalize on the diplomatic success, Trump and other senior government officials greeted the detainees at the airport in a carefully choreographed ceremony. A giant U.S. flag was hoisted by two fire trucks in the background. After the planes landed, Trump stepped on board for a brief greeting before emerging alongside the detainees. Missing from the ceremony however, were the relatives of the detainees.

U.S. President Donald Trump (C) speaks to the media after welcoming Kim Dong-chul, Kim Hak-song and Tony Kim back to the United States at Joint Base Andrews in Washington D.C., the United States, May 10, 2018. Three U.S. citizens that were just freed by the Democratic People's Republic of Korea (DPRK) arrived in Washington early Thursday, as the two countries saw their ties warm up in recent weeks. (Xinhua/Shen Ting)

"This must have broken your ratings records at three in the morning," Trump told reporters there.

The detainees will be taken to a nearby hospital for further check-ups.

U.S.-DPRK ties have taken a drastic turn in recent weeks, as both countries replaced fiery rhetoric with friendlier gestures. Trump and Kim are expected to conduct a historic meeting late May or in June. Trump said that the date and location has been decided and will be announced soon.