4L75 is reported to have been "on fire" and is currently in the Daventry area with fire brigade present. Train services suspended Northampton to Rugby. 86609 and 86607 are the locos on the service with 607 being the one affected. The engines have been detached from the rest of the train. 66585 (off 4M94) on the way to assist and clear the line and drag the train to Bletchley.