Broken down train between Stevenage and Welwyn Garden City may affect services

A train has broken down between Stevenage and Welwyn Garden City. Picture: Nick Gill

A train has broken down between Stevenage and Welwyn Garden City. Picture: Nick Gill - Credit: Archant

A train has broken down between Stevenage and Welwyn Garden City, blocking one of the lines.

Great Northern have tweeted explaining that services running through these stations heading towards London may be cancelled or delayed.