'Power outage' occurs one after another in Seoul amid cold wave = South Korea

On the 7th, a series of power outages occurred in Seoul, South Korea, leaving residents in the cold. According to the Korea Electric Power Corporation, around 12:51 p.m.
Power supply to over 900 households in Hwagok, Seo-gu was cut off. The Korea Electric Power Corporation carried out emergency restoration work and resumed power supply about an hour later at around 1:50 p.m.
The Korea Electric Power Corporation believes that the power outage was caused by a tree branch hitting a high-voltage line, and is currently investigating the exact cause.
Prior to this, at around 3:19 a.m. on the same day, Hongeun, Seodaemun-gu, Seoul
A power outage also occurred in Hiroon, but restoration was completed approximately 5 hours and 40 minutes later.