According to JR East, the JR Takasaki Line has suspended operation on the complete line between Tokyo Station and Takasaki Station as a result of accident that occurred at Ageo Station in Saitama Prefecture round 7:38 am on the 4th. Along with this, the JR Shonan-Shinjuku Line has additionally suspended the operation of trains that run on to the Takasaki Line north of Shinjuku Station. It is anticipated to renew operation round 8:30 am.
Source
JR Takasaki Line Tokyo-Takasaki suspension of operation because of private harm | NHK
