A trespass incident at Berkhamsted is causing disruption to services between Milton Keynes Central and Watford Junction. Trains may be delayed by up to 30 minutes or revised.
Disruption is expected until 19:00.
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 #Berkhamsted
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.