Russia is expecting a positive response from the US to President Vladimir Putin's proposal to extend the adherence to the New START (New Strategic Arms Reduction Treaty) by an additional year, Foreign Minister Sergey Lavrov said today.

Speaking at the Third Minsk International Conference on Eurasian Security, Lavrov expressed hope that Washington would agree to unilaterally observe the treaty's quantitative limits, as Moscow has pledged to do, as per state media.

"I hope we can get a positive response from the United States to the proposal that they too agree to unilaterally comply with the quantitative indicators set out in the New START Treaty," Lavrov told reporters.

"President (Donald) Trump has spoken positively about this initiative by President Putin several times. We expect those comments to translate into an official announcement."

Lavrov noted that while there had been some progress on the issue, a more constructive atmosphere in bilateral relations was required to move forward. He said Moscow remained open to dialogue, but wanted assurances that any future summit between Putin and Trump would deliver tangible results.

"We also need guarantees that the meeting of the presidents will produce a concrete result. We are ready for this result. Moreover, when Presidents Putin and Trump met in Anchorage, we supported the proposals that US Special Presidential Envoy Steven Witkoff brought to Moscow a week earlier," he said.

The foreign minister added that Moscow sought increased cooperation with Washington in the domain of civil aviation, though the latter did not appear to share the same level of interest.

"We proposed this long ago, during our initial contacts in January and February, to resume direct air service," he said.

"So far, from our conversations with our American colleagues, we sense that this is not their priority."

Turning to Ukraine, Lavrov said Moscow hoped President Trump was working towards lasting peace rather than facilitating further arms supplies to Kyiv.

"We really hope that President Trump wants a truly sustainable peace, and not to create conditions for the continued pumping of weapons and money into the Kyiv regime," he said.

Lavrov also said Russia had not received any official reaction from Washington regarding the recent test of the Burevestnik nuclear-powered cruise missile. "I have not heard any response (to the tests) through diplomatic channels. Everyone has gone quiet," he told reporters.

On Sunday, President Putin announced that the Burevestnik missile had completed its final testing phase, describing it as a "unique" weapon. According to Chief of the General Staff Valery Gerasimov, the missile covered a distance of around 14k km during a test flight in October.

The New START Treaty, signed in 2010, limits the number of deployed strategic nuclear warheads and delivery systems held by the two nuclear powers, being one of the very few remaining arms control agreements, still being pursued and discussed by either Moscow or Washington amid rising geopolitical tensions.