UPDATE: Train services now running in Milton Keynes following tragic incident
Rail lines have now re-opened, and trains are running through Milton Keynes after a person was struck by a train at Hemel Hempstead earlier today.
National Rail are advising travellers that trains between London Euston and Milton Keynes Central may still be delayed by up to 90 minutes, cancelled or revised.
In a tweet, National Rail urged anyone affected by the tragic incident to contact the Samaritans on 116 123.
Also by the Milton Keynes Citizen newspaper: