By Erin Banco, Jonathan Landay and Michael Martina WASHINGTON (Reuters) - More than one hundred Chinese citizens fighting for the Russian military against Ukraine are mercenaries who do not appear to have a direct link to China's government,

Ukrainian forces have captured two Chinese nationals who were fighting for the Russian army in eastern Ukraine's Donetsk region, President Volodymyr Zelensky has said. He said on Tuesday that intelligence suggested the number of Chinese soldiers in Russia's army was "much higher than two".

Ksenia Karelina, a Russian-American ballerina who was sentenced to 12 years in prison in Russia for donating to a charity aiding Ukraine, landed in Washington after being freed.

Russia and the U.S. carried out a prisoner swap early Thursday in Abu Dhabi in a sign of continuing confidence building, as the two sides pursue a deal to end the war in Ukraine. Russia released Ksenia Karelina,

A U.S. Russian dual citizen, held in a Russian prison for more than a year, is back in the U.S. Friday. Ksenia Karelina was greeted by her fiancé, a few friends and White House officials after her plane landed at Joint Base Andrews in Maryland.