CHERNIHIV REGION, Ukraine (AP) — An exchange of prisoners between Russia and Ukraine from their more than three-year war was underway Friday, a senior Ukrainian official said. The swap was not yet finished, according to the official, who spoke on condition of anonymity because he was not authorized to speak publicly.

The first direct Ukraine-Russia talks did not deliver a ceasefire but it did result in the largest prisoner swap of the war. CHERNIHIV REGION, Ukraine — For hours Friday, a crowd of hopefuls stood on the roadside wrapped in blue-and-yellow flags and clutching photos of captured Ukrainian soldiers — their eyes peeled for any sign of buses.

Russian authorities have been forced to shut down airports in Moscow amid a barrage of Ukrainian drone strikes overnight, Russian officials and state media reported on May 23. Operations have been suspended at Moscow's Vnukovo,

Ukraine said its drones hit production facilities of a company that makes batteries used to power Russian missiles.

Ukraine pioneered the use of small drones on the battlefield. But in Russia’s Kursk region, Moscow’s fiber-optic cables helped turn the tide.