Editor’s note: The story was updated with comments by Kyiv authorities. Explosions were reported in Kyiv on the morning of Sept. 26 almost immediately after an air raid alert went off in the city, but authorities later denied Russia had attacked the capital. Ukraine’s Air Force said that the alert had been prompted by the launch of a Mig-31K aircraft, a carrier of Kinzhal ballistic missiles that Russia uses to attack Ukraine. At least two missiles were launched, according to the statement, but the Kyiv City Military Administration later said that Kyiv was not the target of the attack, and air …