KYIV, Ukraine (AP) — More civilians died across Ukraine on Sunday as analysts warned that delays in U.S. military assistance would see Kyiv struggle to fight off Russian offensives.

One man was Sunday killed after a Russian drone hit the truck he was driving in the Sumy region, the local prosecutor’s office said. Elsewhere, a 67-year-old woman was killed after shelling hit an apartment block in the Donetsk region, said Gov. Vadym Filashkin.

Officials in the Kharkiv region also said Sunday that they had retrieved the bodies of a 61-year-old woman and a 68-year-old man killed by a Russian strike the previous day. Ten Russian Shahed-type drones were shot down over the Kharkiv region overnight, the Ukrainian Air Force said Sunday.

Meanwhile, shelling in the Russian-occupied Kherson region killed two civilians Sunday, said Moscow-installed leader Vladimir Saldo. Ukrainian drones were also reported in Russia’s Krasnodar and Belgorod regions and over the Black Sea, the Russian Defense Ministry said.