The Russian story was "defective Ukrainian air defense missle hit hospital". But since that has now been debunked because of evidence of the missile being Russian. they'll also just say something about a terrorist base.
Or actually, they will just still say it was a defective air defense missile. Looking at the amount of people here still repeating the lie about the military base it appears not to matter that it gets fully debunked. The drones will repeat anything they are told.