We cannot rule out that it comes from the #Ukrainian territory (Donetsk, Zaporizhia) or from the territory controlled by Russia (Zaporijia, Kherson).
The times that #Russian forces have been seen deploying #Tochka-U missiles has been in the north, in Belarusian territory. It is known that Belarus still maintains them in service (due to the direction and distance, it is completely ruled out that the attack could have been from the north).