NBC News has analyzed satellite imagery to dig into Kyiv's and Moscow's claims as part of a wider propaganda war being waged in parallel to the actual fighting.

Ukraine's overnight drone strikes have forced a temporary suspension of flights in all airports serving Moscow and the country's second-largest city St. Petersburg, but caused no damage, Russian officials reported on Tuesday.

Russia launched another drone attack Monday night, making the two consecutive nights of attacks the largest drone assault against Ukraine yet, coming as peace talks between the nations stall. Russia launched hundreds of Geran drones and over a dozen missiles of various types at targets across Ukraine on Monday night,

Kyiv was hit by an intense aerial attack overnight, with residents reporting relentless waves of drones and missiles and near-constant explosions.

Ukraine's president says a new prisoner exchange with Russia is ongoing and will take days, as both sides continue launching hundreds of attack drones.

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Russia conducted its second-largest missile and drone attack on Ukraine since the start of its invasion in 2022, according to the Institute for the Study of War ( ISW) whose graph illustrate the response to Kyiv's drone barrage on Russian military airfields.