'Happy New Year' was written on Iranian-made drone was found in Ukraine's capital Kyiv on Sunday.
On Saturday, multiple blasts rocked Kyiv and other areas of Ukraine amid the 10-month-old war with Russia.
Anton Gerashchenko, adviser to Ukraine's minister of internal affairs, posted an image of the drone on Twitter. Police said it was among 32 destroyed by Ukrainian forces on New Year's Eve.
"Remains of an Iranian drone taken down during New Year's night in Kyiv region," Gerashchenko wrote. "The writing says 'Happy New Year.' "
Andrii Nebytov, head of the Kyiv regional police, originally posted the images on Telegram.
On Telegram, he wrote there were 140 reports of enemy drones flying over Kyiv region on New Year's Eve. "The wreckage of the drones has already been found in three districts of the region. Police continue to search for the remains of drones and record war crimes of aggressors."