More in this below - looks like HST's may have been routed through Melksham:
http://www.gazetteandherald.co.uk/display.var.1885010.0.train_death_causes_delays.phpPolice were called to the Box railway tunnel after a person was hit by a train and killed this morning.
Trains were brought to a standstill and commuters face massive delays following the collision which happened shortly after 7am.
The 6.22am Weston Super Mare to London Paddington train was travelling from Bath towards Chippenham when it hit an unknown person at the entrance to Box tunnel.
The section of railway track near Shockerwick, which is just within the Wiltshire border, was closed while police searched the area and undertakers recovered the body.
The identity of the victim is not yet known and police are unable to say whether it was a suicide bid or not.
The train was delayed for almost two hours and scores of passengers were forced to alight at Swindon to board other trains.
Meanwhile commuters waiting at Chippenham faced major delays and trains were re-routed through Westbury and Reading.
A spokesman for First Great Western said: "We apologise for any inconvenience but this is something beyond our control.".
A spokeswoman for First Great Western said the incident happened in Box Tunnel, between Chippenham and Bath on Thursday morning.
Rail services between the two stations have been cancelled, but alternative transport has been arranged.
Delays are likely for passengers travelling from Paddington to Bristol as trains are being diverted.