Used cables from fiber-optic drones have turned into an unexpected hazard for Ukrainian troops on the front line, Business Insider reports. Footage from the battlefield shows how snapped wires coil into dense clumps, forming a kind of web that becomes visible only under bright sunlight or at a certain angle.

A Ukrainian soldier known by the call sign Khischnik told the outlet that discarded cables now cover the terrain and have become a genuine «tactical problem.» According to him, they interfere with special-operations units during nighttime missions, and fighters often struggle to distinguish whether they are facing a loose wire or a trip-wire mine.

He also noted that this tangle of spent cables slows down mission execution and is becoming «an increasingly serious obstacle» as Ukrainian special forces move closer to the line of contact.