According to the Ukrainian Air Force, ongoing missile strikes against Ukraine have originated, in part, from Belarus or Belarusian airspace. It is not currently clear what type/model/series the missiles are or their launch platforms.
At approximately 1125 EST, initial reports indicated significant missile barrages targeted Vinnytsia Oblast. Reports also indicated that Kalibr missiles flew into Ukraine from the Black Sea and headed towards Kyiv. These strikes are ongoing.
Zhytomyr region rockets from Belarus.
— Ukraine Front Lines (@EuromaidanPR) August 5, 2023
One of the last reported strikes from Belarus occurred in December 2022, before that, October 2022. Those strikes were carried out by Russian Tu-22 bombers in Belarusian airspace.
This is developing.