Mass retaliatory Russian strikes across Ukraine today killed 14 people yesterday. (Representational)
Russia's defence ministry said Tuesday its forces had renewed strikes on Ukraine's energy facilities, a day after Moscow carried out a mass nationwide bombardment on the pro-Western country.
Russia's army "continued to deliver mass strikes with high-precision, long-rage ... weapons against military command facilities and the energy system of Ukraine," the ministry said in a statement adding that "all assigned targets were hit".
"As of this moment, there have been three explosions at two energy facilities in the Lviv region," governor Maxim Kozitsky said on Telegram with Lviv mayor Andriy Sadovyi saying part of the region's main city, also called Lviv, was without electricity.
Ukraine's presidency said on Monday there were strikes on "many" cities in Ukraine, a day after Moscow blamed Kyiv for an explosion on a bridge connecting Crimea to Russia.
At least 19 people were killed and more than 100 wounded as a result of the Russian strikes across the country yesterday "According to preliminary data, 19 people were killed and 105 more were injured," Ukraine's emergency services said on Facebook.
President Vladimir Putin had vowed even more "severe" retaliation against Kyiv.
"Let there be no doubt," Putin said in televised comments addressed to his security council, "if attempts at terrorist attacks continue, the response from Russia will be severe."
Putin's predecessor, Dmitry Medvedev, warned on social media that the strikes -- which disrupted water and electricity services across Ukraine - were only "the first episode".
Russia's last strike on Kyiv took place on June 26.