As Ukraine hunts for traitors, the fear of Russian infiltration extends east, far from the capital.

The sense of paranoia runs deepest here, in eastern Ukraine, where suspicions of treason committed by locals divide formerly occupied villages like Kutuzivka, a once-sleepy hamlet east of Kharkiv, where signs of a recent Russian presence are everywhere.

Stray dogs roam over broken glass as the sound of shelling echoes overhead, with Ukrainian troops still fighting off a near-constant barrage of artillery fire by Russian troops north of the village when Reuters visited at the end of May.