Around 9:30 a.m., a person trespassed onto the tracks between JR Higashi-Jūjō and Akabane Stations. As a result, train services on the Keihin-Tōhoku Line, Takasaki Line, Utsunomiya Line, and the sections of the Shōnan-Shinjuku Line north of were suspended in both directions for approximately one hour. Eight trains were canceled on sections of the lines, 53 trains were delayed by up to about 60 minutes, affecting around 52,000 people.

Reports indicate the trespasser is believed to be an adult. Railway staff pursued the individual but were unable to apprehend them. Service resumed after confirming the person had left the tracks.

According to the Ōji Police Station, a report was received around 9:50 a.m. from a station staff member at Higashi-Jūjō Station stating, “A man ran away.” This man was reportedly being questioned by station staff at Higashi-Jūjō Station regarding a disturbance with a woman inside a Keihin-Tōhoku Line train. During the questioning, he fled, descended onto the tracks, and headed in the direction of Akabane Station.

JR Higashi-Jūjō Station

JR Higashi-Jūjō Station is a railway station located in Kita Ward, Tokyo, Japan, serving the Saikyō Line. It opened in 1985 to alleviate congestion on the neighboring Jūjō Station and to improve access for residents in the developing northern Tokyo suburbs. The station primarily functions as a commuter hub, connecting the area to major stations like Shinjuku and Ōsaki.

Akabane Station

Akabane Station is a major railway hub in Tokyo’s Kita Ward, primarily serving the JR East network. It opened in 1885 and was historically a key freight terminal, but its role shifted to passenger transport with the area’s urban development. Today, it is a bustling commuter station known for its connection to the Shōnan-Shinjuku and Utsunomiya lines.

Keihin-Tōhoku Line

The Keihin-Tōhoku Line is a major commuter railway line in Japan, operated by JR East, which runs approximately 59 km between Ōmiya in Saitama Prefecture and Yokohama in Kanagawa Prefecture, passing through central Tokyo. It opened in stages between 1914 and 1932, primarily to connect and relieve congestion on the parallel Tōkaidō Main Line and Yamanote Line. Today, it is a vital artery, famously running parallel to the Yamanote Line through central Tokyo while providing a crucial north-south link across the greater Tokyo metropolitan area.

Takasaki Line

The Takasaki Line is a major railway line in Japan, operated by JR East, connecting Ōmiya Station in Saitama Prefecture to Takasaki Station in Gunma Prefecture. It opened in 1884 and was historically vital for transporting silk and other goods from the northern Kantō region to Tokyo, contributing significantly to the area’s industrial development. Today, it remains a crucial commuter and regional corridor, also serving as a key link for Shinkansen transfers at Takasaki.

Utsunomiya Line

JR Higashi-Jūjō Station

JR Higashi-Jūjō Station is a railway station located in Kita Ward, Tokyo, Japan, serving the Saikyō Line. It opened in 1985 to alleviate congestion on the neighboring Jūjō Station and to improve access to the densely populated residential areas of northern Tokyo. The station primarily functions as a commuter hub, connecting passengers to major stations like Shinjuku and Ōsaki.

Akabane Station

Akabane Station is a major railway hub in Tokyo’s Kita Ward, primarily serving the JR East network. It opened in 1885 as part of the Nippon Railway, making it one of the oldest stations in northern Tokyo, and has since evolved into a critical interchange point for several commuter lines. The surrounding area has transformed from a historic post town into a bustling commercial and residential district.

Keihin-Tōhoku Line

The Keihin-Tōhoku Line is a major commuter rail line in Japan, operated by JR East, which runs approximately 59 km between Ōmiya in Saitama Prefecture and Yokohama in Kanagawa Prefecture, largely parallel to the Tōkaidō Main Line through central Tokyo. It opened in stages between 1914 and 1934, originally to relieve congestion on the Yamanote Line’s eastern arc and to provide a direct north-south link for freight and passengers across the Keihin (Tokyo-Yokohama) industrial zone. Today, it is famously known for its distinctive light blue train cars and functions as a vital artery, connecting key urban centers and interchanging with nearly every line on the Tokyo rail network.

Takasaki Line

The Takasaki Line is a major railway line in Japan, operated by JR East, connecting Ōmiya Station in Saitama Prefecture to Takasaki Station in Gunma Prefecture. It opened in 1883 and was historically vital for transporting silk and other goods, later becoming a key commuter and freight route integrated into the Tokyo metropolitan network. Today, it serves as an important artery for both local travel and long-distance services, including connections to the Hokuriku and Joetsu Shinkansen lines at Takasaki.

Utsunomiya Line

The Utsunomiya Line is a major railway line in Japan, operated by JR East, connecting Tokyo’s Ueno Station to Utsunomiya Station in Tochigi Prefecture. It opened in 1885 and was historically vital for transporting goods and passengers to the northern Kanto region, later becoming a core part of the Tohoku Main Line network. Today, it serves as a critical commuter and regional corridor, with many services continuing northward on the Tohoku Shinkansen.

Shōnan-Shinjuku Line

The Shōnan-Shinjuku Line is a major railway service in Japan, operated by JR East, which connects the cities of Ōmiya and Odawara via central Tokyo. It was established in 2001 as a strategic through-service, integrating existing tracks from several other lines to create a direct north-south route that bypasses busy central stations and relieves congestion. While not a single physical line, it is a vital commuter and rapid service linking the Kantō region’s suburbs and urban centers.

Ōji Police Station

Ōji Police Station is a historic police station located in the Ōji district of Tokyo, Japan. It was originally established in 1874, making it one of the oldest police stations in the city, and its current building dates from 1931, featuring a distinctive Western-influenced design from the early Shōwa period. Today, it remains an active police facility and is recognized as a tangible cultural property of Kita City for its architectural and historical significance.

Saikyō Line

The Saikyō Line is a commuter rail line in Tokyo, Japan, operated by JR East, connecting Ōsaki Station in Shinagawa to Ōmiya Station in Saitama Prefecture. It was opened in 1985, primarily to relieve congestion on other lines and improve access to the rapidly developing suburbs along its route. Today, it is a vital and often crowded artery, famously sharing its tracks with the Shinkansen through parts of the city.