The 15 people were wounded in the city of Mukachevo, near the border with Hungary and Slovakia, the city council said.
“Five patients are being treated in the hospital, and one more was transferred to the regional hospital,” the council posted.
Western Ukraine is less frequently targeted by Russian forces, which have captured swathes of southern and eastern Ukraine in an invasion which began in 2022.
Ukrainian Foreign Minister Andriy Sybiga said there was “no military logic or necessity” to the strikes, saying they were “just terror against people”.
Meanwhile, Russia’s defence ministry said it destroyed “49 Ukrainian aircraft-type unmanned aerial vehicles” across multiple regions.
The ministry did not detail any casualties or damage.
The latest cross-border fire follows Trump’s flurry of diplomacy this month aimed at ending the war.
The US president met his Russian counterpart Vladimir Putin in Alaska, before bringing Ukrainian President Volodymyr Zelenskyy and European leaders to Washington for separate talks.
Russia has played down the prospect of a summit between Russian President Vladimir Putin and Zelensky any time soon, and has said it wants to be included in discussions on future security guarantees for Ukraine.
