Mayor Serhii Nadal said large numbers of enemy UAVs were heading toward both the Ternopil region and the city, while regional administration head Taras Pastukh warned of high risk.
The blasts were reported after an air raid alert was declared for the western Ukrainian region as the drones approached.
Ukrinform also said air defence systems were active in the Kyiv region, indicating a wider aerial threat across parts of Ukraine.
With Russia's extended-range drones targeting cities deep in Ukraine, what new defenses or strategies could protect civilians from future attacks?
How might Ukraine's rapid drone innovation shift the balance in modern warfare, and can global allies keep up with the evolving threat?