KYIV, Ukraine, May 24, (AP): Ukraine’s capital came under a large-scale Russian drone and missile attack early Saturday with explosions and machine gun fire heard throughout the city, forcing many Kyiv residents to take shelter in underground subway stations. The nighttime Russian attack came hours after Russia and Ukraine began a major prisoner exchange, swapping hundreds of soldiers and civilians in the first phase of an exchange that was agreed on by the two sides at a meeting in Istanbul last week.

The agreement was a moment of cooperation in otherwise failed efforts to reach a ceasefire in the 3-year-old war. The debris of intercepted missiles and drones fell in at least four city districts of the Ukrainian capital early Saturday, acting head of Kyiv military administration, Tymur Tkachenko, wrote on Telegram.

According to Tkachenko, six people required medical care after the attack and two fires were sparked in the Solomianskyi district of Kyiv. Yurii Bondarchuk, a local resident, said the air raid siren "started as usual, then the drones started to fly around as they constantly do.” Moments later, he heard a boom and saw shattered glass fly through the air.

"The balcony is totally wiped out, as well as the windows and the doors,” he said, describing the damage to his apartment as he stood in the dark in the middle of the night. He smoked a cigarette to calm his nerves while firefighters worked to extinguish the flames. The air raid alert in Kyiv lasted more than seven hours overnight, warning of incoming missiles and drones.

Prior to the attack, city mayor Vitalii Klitschko warned Kyiv residents of more than 20 Russian strike drones heading towards Kyiv. As the attack continued, he said drone debris fell on a shopping mall and a residential building in Obolon district of Kyiv. Emergency services were headed to the site, Klitschko said. The prisoner swap Friday was the first phase of a complicated deal involving the exchange of 1,000 prisoners from each side. President Volodymyr Zelenskyy said the first phase brought home 390 Ukrainians, with further releases expected over the weekend that will make it the largest swap of the war. Russia’s Defense Ministry said it received the same number from Ukraine.