A drone attack targeted the region overnight.
Sevastopol, in annexed Crimea, was left without power after a Ukrainian attack on the city, according to Russian-appointed governor Mikhail Razvozhayev.
Crimea was illegally annexed by Russia in 2014.
Woman killed in Russian attack on Kharkiv region
A woman has been killed in a Russian attack on the Kharkiv region in Ukraine, the regional military government says.
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