Russia and Ukraine swap prisoners hours after largest air attack of war

Firefighters try to put out a fire following a Russian attack in the Kyiv region (Ukrainian Emergency Service via AP)

Russia and Ukraine have swapped hundreds more prisoners in the third and last part of a major exchange that reflected a rare moment of cooperation in otherwise failed efforts to reach a ceasefire in the more than three years of war.

Hours earlier on Sunday, the Ukrainian capital, Kyiv, and other regions came under a massive Russian drone-and-missile attack that killed at least 12 people and injured dozens.