All Czech substations resume operation, and the power supply is gradually being restored.

On the afternoon of the 4th local time, the Czech national power transmission system company announced that all power transmission substations in the country have resumed operation. Currently, the power supply in the affected areas is gradually being restored. The company stated that the power outage affected eight substations, with one key transmission line experiencing a "phase line drop". The Czech police stated on social media, "There is no evidence to suggest that this was a cyber attack or terrorist attack."