Obama praises Clinton's work in freeing journalists

President Barack ObamaBarack Hussein ObamaGOP lawmaker: Dems not standing for Trump is 'un-American' Forget the Nunes memo — where's the transparency with Trump’s personal finances? Mark Levin: Clinton colluded with Russia, 'paid for a warrant' to surveil Carter Page MORE on Wednesday praised the efforts of former President Bill ClintonWilliam (Bill) Jefferson ClintonLongtime Clinton confidant blames Comey for 2016 loss Trump’s national monument rollbacks take effect A year after Obama, Dems still looking for replacement MORE and former Vice President Al GoreAlbert (Al) Arnold GoreJoe Lieberman: We’re well beyond partisanship, our national government has lost civility Trump doesn't start a trade war, just fires a warning shot across the bow Dems face hard choice for State of the Union response 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.