Key facts
- Explosions were reported in Kyiv and Khmelnytskyi oblasts around 4 a.m.
- Ukraine's Air Force issued a warning about Russian ballistic missiles.
- Multiple explosions were heard in Sumy between 5 a.m. and 5:45 a.m. local time.
- The incidents in Sumy occurred amid reports of an incoming Russian missile attack.
Explosions were reported in Kyiv and Khmelnytskyi oblasts early Monday morning, according to local media. During the incidents, Ukraine's Air Force issued a warning indicating the threat of incoming Russian ballistic missiles. Later, multiple explosions were heard in the city of Sumy between 5 a.m. and 5:45 a.m. local time, with public broadcaster Suspilne reporting the events amid further warnings of an incoming Russian missile attack.