Reports say there has been a trespass incident between Milton Keynes Central and Watford Junction.
There have been cancellations and delays to services from Milton Keynes Central this afternoon.
It is not yet known when services will return to normal.
📢 Problems reported
— London Northwestern Railway (@LNRailway) August 20, 2021
🚧 Cancellations to services between Milton Keynes Central and Watford Junction: Due to trespassers on the railway between Milton Keynes Central and Watford Junction all lines are blocked.
ℹ https://t.co/V71JcpUra7