Last updated at 12:48 a.m. EST
The U.S. and Israel failed to heal their deepest dispute in decades as a two-day visit by Israeli Prime Minister Benjamin Netanyahu ended late Wednesday without resolving a rift over new Israeli housing planned in east Jerusalem.
Before departing the U.S., Netanyahu said he thought some progress had been made in defusing what has become an unusually public spat between close allies.
"I think we have found the golden path between Israel's traditional policies and our desire to move forward toward peace," the Israeli leader said as he boarded his plane for the trip back home.
American officials said last-minute talks between Netanyahu and U.S. Mideast peace envoy George Mitchell had not ended tensions over Israeli construction in the part of Jerusalem that Palestinians want to be a capital of a separate state.
The officials spoke on condition of anonymity because the closed-door talks were confidential.
U.S. and Israeli officials told The Associated Press that the talks were aimed at getting Israeli-Palestinian peace talks back on track. Netanyahu had extended his stay by hours to work on a deal, but the talks ended at about 8 p.m. without any announcements, one official said.
The two sides had hoped to come up with mutually acceptable ideas to improve an atmosphere poisoned by announcements of the new Jewish housing projects. An Israeli official said Israel wants to see talks with the Palestinians resume quickly. The evening talks were intended to promote that goal, the official said.
Netanyahu twice pushed back his departure from Washington after talks with President Barack Obama, Vice President Joe Biden and Secretary of State Hillary Rodham Clinton failed to reach consensus on what Israel could do to repair damage caused by the housing announcements.
During Netanyahu's frosty visit, "the U.S. made clear it is looking for steps to increase confidence and show commitment to the process," said Mark Toner, the deputy State Department spokesman.
Earlier Wednesday, the Obama administration challenged Israel to explain yet another announced plan to expand Jewish housing in east Jerusalem, the same issue that soured U.S.-Israeli relations ahead of Netanyahu's three-day visit to Washington this week.
Palestinians claim east Jerusalem as the capital of a future independent state, and the United States sees continued Israeli building there as a provocation that makes peace negotiations harder.
Netanyahu offered no concessions during his visit on an earlier plan to build 1,600 homes for Jews in the disputed part of the city. Netanyahu's government has refused to back off steady expansion of Jewish neighborhoods in the majority Arab city section.
An aide to Netanyahu said the prime minister was caught off guard by the announcement Wednesday that the Jerusalem municipality has approved 20 new apartments for Jews.
Mitchell returned to the U.S. on Tuesday from talks with Palestinian leader Mahmoud Abbas on the West Bank, apparently without agreement on when the Palestinians would be willing to open a new round of U.S.-mediated talks.
U.S. officials said discussions about the peace talks continue, and Mitchell plans to return to the region after the Jewish Passover holidays, which begin next week.
In an exceptional step, no photographs of Netanyahu's meeting Tuesday with President Barack Obama at the White House were permitted, and neither side has provided a substantive account of the session.
Obama and Netanyahu initially conferred for about 90 minutes in the Oval Office, a half-hour longer than scheduled. After that meeting, Obama retired to the residence while Netanyahu stayed behind in the White House to consult with his staff in the Roosevelt Room, a White House official said.
Netanyahu then asked for a second meeting with Obama, who returned to the Oval Office for an additional 35 minutes of talks with the prime minister, said the official, who spoke on condition of anonymity to discuss the sensitive diplomatic issue.
Although they met for a total of two hours, the White House did not issue a formal statement on what was discussed in either meeting.
"I think it comes as a great shock to you and me, but not everything the president does is for the cameras and for the press," said Robert Gibbs, the White House spokesman.
Gibbs would say only that the discussions were "honest and straightforward" and that Obama had urged Netanyahu to take a series of steps to build confidence in Israel's ability to take part in peace talks with the Palestinians. He would not elaborate about those steps.
Meanwhile, a White House spokesman, Tommy Vietor, said the White House continues to believe that Israeli construction in east Jerusalem is destructive to the Mideast peace process. He said the U.S. is asking for "clarification" of the latest building plan, and he urged both the Israelis and Palestinians to refrain from acts that could undermine trust.