Services have been replaced by an emergency timetable with trains leaving London to Huntingdonshire at 5.23pm, 5.53pm, 6.23pm, and 23 minutes past the hour from then on. Trains to London depart Huntingdon at 11 minutes past the hour and 20 minutes past from St Neots. A National Rail spokesman said: Emergency engineering works are causing disruption at Alexandra Palace and Bowes Park.Because of this, First Capital Connect are running an amended service to and from London Kings Cross. To view the amended timetable click here. Normal service is expected tomorrow.