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.

Russia and Ukraine swapped hundreds more prisoners on Saturday, the Russian defense ministry said, as part of a major swap that was a moment of cooperation in otherwise failed efforts to reach a cease

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. On board would be the first batch of Ukrainian troops released in the largest exchange of the war with Russia thus far — the only outcome of direct talks between Russia and Ukraine in Istanbul last week that failed to result in a ceasefire.