A malfunctioning power bank emitted smoke on a Seoul subway train, causing a temporary service delay for passengers on Line 2 [1].
The incident highlights the potential safety risks associated with portable lithium-ion batteries in crowded public transit environments. Such malfunctions can trigger emergency protocols that disrupt thousands of commuters during peak travel hours.
The smoke was reported at approximately 6:30 p.m. [1] as a train passed Sinlim Station. Witness Lee Seok-ho said the smell of burning electricity was evident as people crowded out of the train during the evening rush [2]. Following the incident, subway service on the up-direction line was delayed by about eight minutes [1].
Separate from the subway malfunction, KTX operators identified a structural issue on the high-speed rail network. A section of the KTX Gangneung line between Namgangneung and Gangneung Station was found to have a warped track [2].
This track deformation was observed at about 3 p.m. [1] on June 18, 2024. While the subway delay was linked to a specific device failure, reports did not provide an immediate cause for the deformation of the KTX rail line [2].
Seoul Metro and KTX operators have not yet released further details regarding long-term preventative measures for these separate transit disruptions. The subway delay was resolved quickly, but the KTX track issue required technical observation to ensure the safety of high-speed rail operations.
“The smell of burning electricity was evident as people crowded out of the train.”
These two unrelated incidents underscore the vulnerability of South Korea's high-density transit infrastructure to both consumer electronic failures and structural degradation. While a short delay on Line 2 is a minor inconvenience, the combination of battery-related smoke and rail warping suggests a need for heightened vigilance in both passenger safety equipment and infrastructure maintenance to prevent more severe accidents.
