An object being caught in the overhead wires between Hatfield and Welwyn Garden City means some lines are blocked. Trains running between these stations may be delayed or cancelled.
Disruption is expected until 19:99.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner
Twitter:
If you would like to follow this incident on Twitter, please use #Stevenage
Compensation:
You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.