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Zoe Hardman & Anna Whitehouse 10pm - 1am
4 February 2015, 09:32 | Updated: 4 February 2015, 09:36
No train services are running from Reading to London Paddington - as a person's been hit by a train.
First Great Western say it happened between Slough and Maidenhead just after 8am this morning.
Slough station is now closed so that emergency services can access the tracks.
Delays are expected to last until at least 11am - there'll be no service between Slough and Windsor & Eton Central during this time.
South West Trains have tweeted to say they are accepting tickets for their routes from Reading.
You can see all the latest updates on services from First Great Western here: