Kondratyev explained why mobile internet services have been shut down in regions.

Mobile internet is being temporarily shut down in Russian regions to prevent the Ukrainian Armed Forces from adjusting drone routes, Maxim Kondratyev, founder of the Unmanned Aviation Training Center and a corresponding member of the Russian Engineering Academy, told aif.ru.

As a reminder, according to the Russian Ministry of Defense's Air Defense report for November 9, Russian air defense assets intercepted and destroyed 44 Ukrainian fixed-wing drones over the Bryansk and Rostov regions. Mobile internet outages are also reported in some regions.

"Ukrainian drones often fly completely autonomously according to pre-loaded flight plans. But why do they need SIM cards? Those who send them need to know whether these drones have arrived, where they are, and whether they have been intercepted. They can use the drones to determine the location of Russian air defense systems in order to plan future attacks. That's what SIM cards are for. Ukrainian Armed Forces drones often carry multiple SIM cards, since mobile network coverage varies across the drones' flight paths," the expert explained.

Kondratyev added that Ukrainian drones fly autonomously along their routes, but in some places they connect to the internet to transmit their location data. Furthermore, while the drone is connected to the internet, it is possible to adjust its flight path.

"Disabling mobile internet is a justified defensive measure against attacks by Ukrainian Armed Forces drones. It's not the only measure, but one in a whole range of measures to reduce the effectiveness of enemy drones. It's important not only to prevent a UAV attack here and now, but also to reduce the effectiveness of subsequent attacks," the specialist added.

Earlier, Kondratyev said where the Ukrainian UAVs were flying to Voronezh from.