Trains running from Bristol to London are suffering major disruptions after a train hit someone on the track.
Buses will replace many First Great Western trains after the collision between Bathampton and Box involving the 0900 BST service from London.
A train service from Bristol Parkway to London is still running, as is a half hour service from Bristol Temple Meads.
Services after Bath will be diverted via Westbury up to London Paddington, adding 45 minutes to journey times.
'Major disruption'
Buses from Chippenham to Swindon have been put in place.
Local services between Cardiff, Bristol, Bath, west Wiltshire and east Somerset are unaffected, although there may be some minor delays.
"This is causing major disruption. It is impossible to give a timescale and we are in the hands of the British Transport Police (BTP)," said a First spokesman.
A BTP spokeswoman said the incident was not being treated as suspicious.
^ Back to top | BBC Sport Home | BBC Homepage | Contact us | Help | ©