The man filming the Oliver Cromwell steam train failed to see an express
Railway enthusiasts are being asked to take care near high speed routes after a man standing close to a line in Suffolk was almost knocked over.
The man was filming a steam train at a rural station and failed to notice the express train.
British Transport Police (BTP) are keen to speak to the man following the incident at Thurston last Saturday.
Footage showed a train travelling at about 70mph almost hit him as he stood by the line, a BTP spokesman said.
He added: "A number of steam train enthusiasts attended the rural station to watch the Oliver Cromwell steam train pass through."
Police have seen film footage of the man on a crossing facing towards the steam train and filming it with a camcorder.
The spokesman said a train travelling from the opposite direction passed through "at an estimated 70mph, almost clipping the man and causing a rush of air that unsteadies him on his feet."
Insp Ian Smart said: "Had this man been standing just a few inches closer to the track, I am in no doubt that he would have either been killed or extremely badly injured.
"We're not out to spoil anyone's fun or enjoyment of what is part of our national heritage but it is absolutely vital that people do not take risks that endanger their lives or the lives of others.
"The last thing we want to see is someone paying the ultimate price just to get a close-up photo or video of a steam train."