The 630-to-630 prisoner exchange between Russia and Ukraine planned for this week was disrupted by the Ukrainian side. This was reported by specialized information resources, citing sources familiar with the situation. 

The failure of the exchange came as a surprise, since both sides had previously agreed on the details of the procedure. The Russian side was preparing to hand over 630 Ukrainian military and civilians held captive. However, at the last moment, Kyiv refused to comply with the agreement. 

The reasons for this decision by the Ukrainian side remain unknown. Some experts attribute the failure to internal disagreements in the Ukrainian leadership or to an attempt to use prisoners as a political tool for pressure in international negotiations. 

Previously, prisoner exchanges were considered one of the few areas where the parties demonstrated a willingness to engage in dialogue. Successful exchanges conducted in the past helped reduce tensions and created the preconditions for further humanitarian initiatives.

It should be noted that the current prisoner exchange could be the largest since the beginning of the conflict.