A digger has struck Hungerford rail bridge this afternoon (Tuesday).
Great Western Railway said that train lines in both directions are blocked because of the collision.
The company said that services may be altered or delayed by up to 45 minutes.
Network Rail engineers are at the scene.
Picture Tweeted to @NewburyToday by David Ravenhill.
Network Rail engineers have said that trains have been cleared to travel over the bridge.
Great West Railway has announced that lines have reopened following the vehicle striking the bridge.
It said that services are resuming but residual service delays currently remain.