Ukraine's Unmanned Systems Forces struck the port of Primorsk and an oil refinery in the Russian city of Kstovo on the night of 4-5 April. Source: Robert "Magyar" Brovdi, Commander of the Unmanned Systems Forces Quote from Brovdi: "To the Baltic shore, a freedom-loving Ukrainian Bird delivered a whole lot of pussy willows [used in Ukraine instead of palms on Palm Sunday, which is celebrated today by Orthodox Christians – ed.]. We're whipping with willow branches and hitting the bunker-dwelling old man's wallet [an allusion to Russian leader Vladimir Putin] with drones." Details: Brovdi reported that the attacks involved the 1st Separate Centre of the Unmanned Systems Forces, pilots from the 9th Battalion (Kairos) of the 414th Separate Brigade (Magyar's Birds) and the 413th Separate Regiment (Raid). Update: The report was subsequently confirmed by Ukraine's General Staff. Background: Authorities in Russia's Leningrad Oblast reported an attack involving 19 drones and damage to an oil pipeline in the vicinity of the port of Primorsk. The governor of Russia's Nizhny Novgorod Oblast said on the morning of 5 April that Lukoil's Kstovo refinery and the Novogorkovskaya combined heat and power plant in the region had been damaged as a result of a Ukrainian UAV attack. Support Ukrainska Pravda on Patreon!