LONDON (CNN/BRITISH TRANSPORT POLICE) — Terrifying moments happen as tunnel wind blows a child in a stroller onto London subway tracks.
British Transport Police released these surveillance images from the incident last month.
Authorities say a man placed the stroller against a wall before going up the stairs to help other family members with luggage.
Moments later, you can see the child in the stroller rolling onto the tracks — just after a train left the platform.
Next, the images show a woman, presumably the child’s mother, running to the platform and onto the tracks.
She grabs the stroller and pushes the child back to safety — right before a second train arrives.
Authorities want to track down the couple to make sure the child wasn’t injured in the fall.
They are asking for the public’s help to identify them.