The emergency services dealing with an incident near the railway between Hatfield and Welwyn Garden City means all lines are blocked. As a result, trains running between these stations may be cancelled or delayed.
Disruption is expected until 23:30.
Customer Advice:
More information to follow.
Can you tell me more about the incident?
Thameslink and Great Northern would like to remind all that trespassing is highly dangerous and illegal. Please remember to stay safe whilst travelling on trains.
For more information on what Network Rail are doing to reduce trespassing incidents on the railway please see here.
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 #Hatfield
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.