Sources:
Drones strike Yelabuga, Tatarstan: hitting the Elaz-Nefteproduct refinery and the Shahed drone factory. Yelabuga sits 1,200 km from Ukraine's border.
https://twitter.com/maria_avdv/status/1775051040435454324
Ukraine is now supposedly capable of using light airplanes as kamikaze drones coming that far into the Russian territory. This is most probably an Aeroprakt A-22 Foxbat, a Ukrainian-produced light aircraft, equipped with an additional fuel tank and a remote control system.
https://twitter.com/IAPonomarenko/status/1775050929013702865
More footage and location