"We are doing our best to ensure that Engels fire crews, who have just put out the flames after the previous attack, are not left without work in the face of the increasingly difficult economic situation in Russia," it said.Earlier on Jan. 14, Russian local authorities reported an overnight drone attack had damaged an industrial facility in the city of Engels, located in Russia's Saratov Oblast, following a previous attack overnight on Jan. 8 which targeted the Kristal Plant used to supply fuel to Engels.They released no further details of what was hit on Jan. 14, but the 14th Unmanned Aerial Vehicle Regiment later claimed it had "struck the infrastructure of (Engels airbase)." It did not specify what type of weapon was used in the attack.A source in Ukraine's Security Service (SBU) later on Jan.