Move follows news that US secretary of state Marco Rubio would not attend

Suspilne, Ukraine's state broadcaster, citing the Ukrainian air force, reports that overnight Ukraine claimed to have shot down 67 out of 134 drones used in Russian attacks.

Additionally the air force reported that 47 drones did not reach their target. Attacks, it said, happened in the Kharkiv , Poltava , Donetsk , Odesa , Dnipropetrovsk , and Zaporizhia regions.