In the latest strikes, Ukraine’s air defense forces said they had destroyed 16 of at least 28 missiles that Russia fired. Alarm sirens sounded for two hours in Lviv and Volyn. In Lutsk, businesses and homes were hit, with authorities saying the heaviest damage was caused by debris from destroyed missiles. Eastern Ukraine, which borders NATO member Poland, has faced fewer attacks than the eastern and southern regions. But in July, 10 people were killed and many others injured after a Russian missile hit an apartment block in Lviv.