4. The couple involved in the incident have not yet been identified.
ITV News quotes chief inspector Mark Lawrie, who says: “This was a frightening incident, not just for the scale of the danger the child was exposed to, but also because the woman then put her own life on the line by going onto the tracks.
“We urgently need to identify the people involved to ensure the child wasn’t injured as a result of the fall on to the tracks. I have taken the step of releasing CCTV of the people involved to highlight the very real concern we have for all involved.”
Police urge anyone with any information about the incident to call 0800 40 50 40 or contact Crimestoppers on 0800 555 111.