**Breaking News**
* A wave of drones has targeted Moscow, prompting airport closures and a heightened security alert ahead of Victory Day celebrations.
* Ukrainian drones have reportedly hit a Russian fiber-optic plant in Saransk, leading to fires and potentially disrupting communication systems.
* The attack on the plant comes as Ukraine’s National Security and Defense Council claims the factory supplied materials for the production of fiber-optic drones resistant to electronic warfare interference.
* Air defense forces allegedly intercepted several Ukrainian drones headed toward Moscow.
**Key Developments**
* A Russian air transport agency announced temporary airport closures across the region due to drone sightings.
* Two fires broke out in Saransk following the drone attack on the Optic Fiber Systems plant.
* Local residents reported powerful explosions shaking the city’s industrial district.
