President Joe Biden and Russia’s Vladimir Putin concluded their summit meeting Wednesday between what the American leader called “two great powers,” wrapping up more quickly than expected.

Putin and Joe Biden agreed Wednesday to return their nations’ ambassadors to their posts and begin negotiations to replace the last remaining treaty between the two countries limiting nuclear weapons.

The two leaders met behind closed doors in Geneva for several hours of brass-tacks meetings between two nations who both agree relations between their countries are at an all-time low.

»Watch a replay of President Biden’s news conference

Putin’s news conference came almost immediately after the summit concluded, and the Russian president answered questions from around 20 members of the global press corps for almost an hour. Biden spoke for about half an hour, and opened his remarks by saying he stressed human rights issues in the meeting, including the cases of two Americans who Biden says are “wrongfully imprisoned” in Russia.

Biden also said he’ll continue to raise concerns about cases like Alexei Navalny, the jailed leader of the Russian opposition to Putin.

Biden and Putin posed for several photos before heading inside the Swiss villa, along with the president of Switzerland, Guy Parmelin, who offered brief welcoming remarks to both world leaders.

The two sides had said they expected to meet for four to five hours but spent less than three hours together, including an opening meeting with just the two presidents and each one’s top foreign aide.

As the two leaders appeared briefly before media at the start of the meeting, Biden called it a discussion between “two great powers” and said it was “always better to meet face to face.” Putin said he hoped the talks would be “productive.”

After the two men posed for photos inside the villa sitting in opposite chairs, a scuffle broke out between photographers and Russian security, who began physically herding the media horde out of the room.

Putin acknowledged that Biden raised human rights issues with him, including the fate of opposition leader Alexei Navalny. Putin defended Navalny’s prison sentence and deflected repeated questions about mistreatment of Russian opposition leaders by highlighting U.S. domestic turmoil, including the Black Lives Matter protests and the Jan. 6 Capitol insurrection.

Putin said he and Biden agreed to begin negotiations on nuclear talks to potentially replace the New START treaty limiting nuclear weapons after it expires in 2026.

Washington broke off talks with Moscow in 2014 in response to Russia’s annexation of Ukraine’s Crimea and its military intervention in support of separatists in eastern Ukraine. Talks resumed in 2017 but gained little traction and failed to produce an agreement on extending the New START treaty during the Trump administration.

The Russian president said there was an agreement between the leaders to return their ambassadors to their respective postings. Both countries had pulled back their top envoys to Washington and Moscow as relations chilled in recent months.

Russia’s ambassador to the U.S., Anatoly Antonov, was recalled from Washington about three months ago after Biden called Putin a killer; U.S. Ambassador to Russia John Sullivan left Moscow almost two months ago, after Russia suggested he return to Washington for consultations. Putin said that the ambassadors were expected to return their posts in the coming days.

Putin also said the two sides agreed in principle to begin consultations on cybersecurity issues, though he continued to deny U.S. allegations that Russian government was responsible for a spate of recent high-profile hacks against business and government agencies in the United States and around the globe.

Putin ignored shouted questions from reporters, including if he feared jailed Russian opposition leader Alexei Navalny.

For four months, the two leaders have traded sharp rhetoric. Biden repeatedly called out Putin for malicious cyberattacks by Russian-based hackers on U.S. interests, a disregard for democracy with the jailing of Russia’s foremost opposition leader and interference in American elections.

Putin has pointed to the Jan. 6 insurrection at the U.S. Capitol to argue the U.S. has no business lecturing on democratic norms and insisting the Russian government hasn’t been involved in any election interference or cyberattacks.

Even so, Biden has said it would be an important step if the United States and Russia were able to ultimately find “stability and predictability” in their relationship, a seemingly modest goal from the president for dealing with the person he sees as one of America’s fiercest adversaries.

“We should decide where it’s in our mutual interest, in the interest of the world, to cooperate, and see if we can do that,” Biden told reporters earlier this week. “And the areas where we don’t agree, make it clear what the red lines are.”

Putin’s spokesman, Dmitry Peskov, told The Associated Press on Wednesday that no breakthroughs were expected and that “the situation is too difficult in Russian-American relations.””

“However, the fact that the two presidents agreed to meet and finally start to speak openly about the problems is already an achievement,” Peskov said several hours before the summit’s scheduled start time.

Arrangements for the meeting have been carefully choreographed and vigorously negotiated by both sides.

Putin and his entourage will arrive first at the summit site: Villa La Grange, a grand lakeside mansion set in Geneva’s biggest park. Next come Biden and his team. Swiss President Guy Parmelin will greet the two leaders.

The three will spend a moment together in front of the cameras, but only Parmelin is expected to make remarks, according to a senior administration official who briefed reporters on the condition of anonymity.

Biden and Putin first will hold a relatively intimate meeting joined by U.S. Secretary of State Antony Blinken and Russian Foreign Minister Sergey Lavrov. Each side will have a translator.

The meeting will then expand to include five senior aides on each side.

After the meeting concludes, Putin is scheduled to hold a solo news conference, with Biden following suit. The White House opted against a joint news conference, deciding it did not want to appear to elevate Putin at a moment when the president is urging European allies to pressure Putin to cut out myriad provocations.

Both ambassadors were in Geneva during Wednesday’s meeting.

Biden administration officials say they think common ground can be found on arms control. International arms control groups are pressing the Russian and American leaders to start a push for new arms control by holding “strategic stability” talks — a series of government-to-government discussions meant to sort through the many areas of disagreement and tension on the national security front.

The Biden team will press its concerns on cybersecurity. In recent months, Russia-based hackers have launched alarming attacks on a major U.S. oil pipeline and a Brazil-headquartered meat supplier that operates in the U.S.

The Russian side has said that the imprisonment of Russian opposition leader Alexei Navalny is an internal political matter and one area where Putin won’t engage Biden. But the senior Biden administration official said there “is no issue that is off the table for the president,” suggesting Navalny will come up.

The Associated Press contributed to this report.