Ukraine on Tuesday agreed to a US proposal for a 30-day general ceasefire with Russia, with the United States in turn promising to lift restrictions on military aid and intelligence sharing, a joint statement by the two sides said.

Following talks in Saudi Arabia, the two sides agreed to conclude "as soon as possible" a deal on Ukrainian minerals, the statement said.

"Ukraine expressed readiness to accept the US proposal to enact an immediate, interim 30-day ceasefire, which can be extended by mutual agreement of the parties, and which is subject to acceptance and concurrent implementation by the Russian Federation," a joint statement said after the talks.

"The United States will communicate to Russia that Russian reciprocity is the key to achieving peace," it added.

"The United States will immediately lift the pause on intelligence sharing and resume security assistance to Ukraine."

The US-Ukraine talks took place three weeks after senior US officials held talks with Russian officials in Riyadh.

President Donald Trump had stopped aid to Ukraine after a disastrous meeting with Volodymyr Zelenskyy on February 28.