More than 150 Russians captured on some days of incursion, Ukraine official says

The charred remains of Russian military vehicles on a roadside near Sudzha in Kursk region. Photograph: AP

Ukraine has captured more than 150 Russian prisoners of war on some days in the cross-border military operation that a key civilian official said was the first of “several stages” in taking the fight to Moscow.

Oleksii Drozdenko, the head of the military administration in the Ukrainian city of Sumy, said the attack had fared better than expected and there had been only 15 casualties needing hospital treatment on the first day.