Tokyu Corporation suspended service on parts of the Toyoko and Meguro lines Tuesday after a fire broke out on the tracks [1].

The incident disrupted key commuter arteries in the Tokyo metropolitan area, forcing thousands of passengers to seek alternative transportation during the afternoon. The suspension highlighted the vulnerability of interconnected rail lines to localized infrastructure failures.

According to Tokyu Corporation, the fire occurred at approximately 1:22 p.m. [1] within the railway premises between Tamagawa Station and Shin-Maruko Station on the Toyoko Line [1]. The company halted operations to conduct safety confirmations along the affected corridors.

Service was suspended on the Toyoko Line between Jiyugaoka Station and Musashi-Kosugi Station [1]. Simultaneously, the Meguro Line saw a suspension of service between Oookayama Station and Musashi-Kosugi Station [1].

"According to Tokyu Corporation, there was a fire on the railway premises between Tamagawa Station and Shin-Maruko Station on the Toyoko Line around 1:22 p.m. on the 30th," the company said [1].

Operations resumed for both lines at approximately 3:20 p.m. [1]. While trains began running again, the company noted that the earlier disruptions continued to affect schedules for the remainder of the afternoon.

"Due to this influence, the Toyoko Line between Jiyugaoka Station and Musashi-Kosugi Station, and the Meguro Line between Oookayama Station and Musashi-Kosugi Station suspended operations, but resumed at around 3:20 p.m.," the company said [1].

“Service on the Toyoko and Meguro lines was halted Tuesday after a fire broke out between Tamagawa and Shin-Maruko stations.”

The temporary shutdown of two major lines due to a track-side fire underscores the high sensitivity of Tokyo's transit network to safety protocols. Because the Toyoko and Meguro lines converge and share critical infrastructure near Musashi-Kosugi, a single localized fire can trigger a cascading suspension across multiple routes to ensure passenger safety.