WASHINGTON, Nov 17 (Reuters) - President Joe Biden's administration will allow Ukraine to use U.S.-provided weapons to strike deep into Russian territory, three sources familiar with the matter said, in a significant change to Washington's policy in the Ukraine-Russia conflict.

Ukraine plans to conduct its first long-range attacks in the coming days, the sources said, without revealing details due to operational security concerns.

The move by the United States two months before President-elect Donald Trump takes office on Jan. 20 follows months of requests by Ukrainian President Volodymyr Zelenskiy to allow Ukraine's military to use U.S. weapons to hit Russian military targets far from its border.

The change follows Russia's deployment of North Korean ground troops to supplement its own forces, a development that has caused alarm in Washington and Kyiv.

The first deep strikes are likely to be carried out using ATACMS rockets, which have a range of up to 190 miles (306 km), according to the sources.