Due to an object being caught in the overhead wires between St Albans City and West Hampstead Thameslink, trains running through these stations may be cancelled or delayed by up to 20 minutes.
Disruption is expected until 15:30.
Customer Advice
Please allow extra time to complete your journey this afternoon.
Thameslink also advise to check live journey planners before you head to your station.
Thameslink anticipate delays of up to 15 minutes.
While this incident is ongoing, there will be a reduced service in operation between Bedford and Blackfriars.
Can you tell me more about the incident?
Network Rail colleagues are en route to the area to remove the offending item. In the meantime, there are fewer available lines heading to London, causing a build up of trains, and delays as a result.
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 #Radlett
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.