Ukrainian media reported on the explosions in Lviv and Kremenchuk

The explosions occurred in the cities of Lviv and Kremenchuk. This was reported by the Ukrainian Channel 24 with reference to the Lviv head of the regional military administration Maxim Kozitsky.

"At 02:22 (local time, coincides with Moscow time), the sounds of explosions were heard in Lviv," the publication says.

Explosions are also reported in the Poltava region. An air alert has been declared throughout Ukraine.

The Russian Defense Ministry did not comment on the information about the explosions.

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On June 27, it was reported that explosions occurred in the Kiev and Khmelnitsky regions.