Obama praises Clinton's work in freeing journalists

President Barack ObamaBarack Hussein ObamaJudge rules against Trump administration in teen pregnancy prevention case Parkland student rips Obama for essay on shooting survivors Obama pens Time 100 entry for Parkland survivors MORE on Wednesday praised the efforts of former President Bill ClintonWilliam (Bill) Jefferson ClintonFamily, friends mourn death of Barbara Bush Dems press for hearings after Libby pardon The Hill's Morning Report: Hannity drawn into Cohen legal fight MORE and former Vice President Al GoreAlbert (Al) Arnold GoreHamas attacks Israel — and the world condemns Israel Al Gore: Trump should fire Pruitt Dems seize on gun control heading into midterms MORE in freeing the two American journalists held in North Korea.

Obama, in a brief statement to reporters before boarding Marine One, said that Clinton and Gore should be lauded for their "extraordinary humanitarian effort."

Clinton arrived in North Korea on Tuesday to help free the two journalists. He and Current TV reporters Euna Lee and Laura Ling arrived in Los Angeles early Wednesday morning. They were greeted at the airport by Gore, who founded Current TV, and their families.

Obama said he spoke with Clinton and is "extraordinarily relieved" that Lee and Ling were back on American soil.

A senior administration official told reporters late Tuesday night that North Korean officials agreed to release the Americans if an envoy were to come and ask for their release.

Clinton was briefed by the National Security Council before he left, and White House press secretary Robert Gibbs said the former president will be debriefed shortly.

Gibbs and other senior administration officials have stressed that Clinton's mission was done privately and only in an effort to secure the release of Lee and Ling. They have declined to comment about how much Clinton and North Korean leader Kim Jong-il discussed other controversial topics, like North Korea's efforts at nuclearization, during the more than three hours they spent together.

When asked Wednesday morning if the release of the prisoners would lead to expanded diplomacy between the U.S. and North Korea, Gibbs said "in many ways, that's a question for the North Koreans to answer."

Gibbs said that in the discussions with the U.S. and other members of the United Nations Security Council, it was the North Koreans that "walked away from the table."

"Their actions have only isolated themselves further from the world," Gibbs said.