At least one person was killed in a train collision north of London, according to rescue teams at the scene. Another 89 people were injured in the crash.
Officials said 11 of the wounded were in critical condition, 22 were moderately to seriously hurt, and 56 sustained minor injuries. More than 20 ambulances responded to the incident and treated the victims.
The report did not provide further details on the cause of the collision or identify the trains involved. Emergency crews remained on scene as the scale of the response continued to unfold.