Trains are delayed or cancelled from Watford Junction
Trains are being delayed or cancelled between Milton Keynes and Euston.
Due to an "operational incident" on the trainline, the track between Milton Keynes and Euston was closed.
It has now been reopened, however there are delays of 30 minutes on some trains and cancellations of others.
Tickets can be used on Virgin trains or London Overground.
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