Ukrainian forces attacked drilling platforms in the Black Sea owned by a Crimean oil and gas company, the pro-Russian head of the annexed peninsula said on Monday, giving no details of what weapons were used. Three people were wounded and a search was under way for seven workers from the Chernomorneftegaz energy company, Sergei Askyonov, the Russian-installed head of Crimea, said in a post on Telegram. Crimean officials said work on three drilling platforms had been suspended after the hit, with fires reported. Reuters was unable to immediately verify the reports. Ukraine’s military declined t…