Overview

• Military-aligned blog Deepstate reports small Russian groups have reached the west bank near Kupjansk via a subterranean pipe.
• The alleged route begins on the Oskil’s east bank, and the exit lies outside the city where Russian positions are said to support drone launches.
• The transit reportedly takes about four days and is described as reducing losses compared with surface river crossings.
• The method is presented as reinforcing a foothold across the Oskil as destroyed bridges limit movement around the strategic transport hub.
• dpa relayed the claims, which remain unconfirmed by independent on-the-ground verification.