A wave of relentless Sunday drone attacks out of Ukraine on Crimea has resulted in a regional cut off to civilian access to fuel, in another sign that UAV attacks on Russian territory are having serious effect.Four people were killed in the series of drone strikes on energy and transport infrastructure in the Russian-controlled peninsula, including attacks near Kerch, a key eastern Crimean port city which is a major energy logistics hub.Reuters/BBC: "Cars queue at a petrol station on the peninsula in early June amid already restricted fuel sales.""As a result of the enemy's drone attack on the Kerch Peninsula, unfortunately, there are casualties among the civilian population," Crimean Governor Sergey Aksyonov announced."According to the latest information, four people were killed, 28 were wounded," he added.And he also confirmed the fuel crisis for the whole region, saying, "Today, June 21, starting from 09:00 am, fuel sales at Crimean petrol stations have been suspended" - though he added that fuel would only be sold to state enterprises.He made clear in a Telegram post that starting Sunday morning local time gas stations across the peninsula would stop selling fuel to individuals and businesses. All cash, card and fuel coupons were immediately halted.Ukraine's President Zelensky boasted of the attacks, stating on social media that "Facilities on both sides of the Crimean Bridge were hit: maritime logistics used to transport oil in the Krasnodar region and an oil depot in temporarily occupied Kerch.""In addition, military logistics facilities were successfully struck, along with four radar stations belonging to S-400 systems and two Pantsir systems," he wrote.Crimean governor Aksyonov had also announced that "Further decisions regarding the current situation in the republic's fuel market will be announced at a later date."Last night, our long-range sanctions targeted the occupiers’ military logistics, oil industry, and air defense. All of this is a just response to Russia’s brutal attacks against our people. I thank the warriors of the Security Service of Ukraine, the Unmanned Systems Forces, the… pic.twitter.com/90APquETQT