A British Transport Police spokesman said:
BTP officers were to the line close to Sandy Lane, Yarnton, following a report that a vehicle had been hit by a train.
The incident was reported to BTP at 4.40pm.
Officers are currently on their way to the scene to establish the full circumstances surrounding the incident.”
More top news
Wednesday's weather for the west of the region
Southern Health will launch a full investigation into an alleged 'abusive' voicemail sent to Dr Sara Ryan, mother of Connor Sparrowhawk.
Direct rail services between Southampton and Brighton will be disrupted until the end of this week.