The unbelievable incident happened in France.
A family on their way to their holidays in the French Riviera left their 3-year-old child on a layby and kept driving for 150km before realising they had left her behind. The toddler was found by other holidaymakers in a rest area just off the A7 motorway.
Upon hearing the announcement, the family turned back to collect the child.
They are been questioned by police about the incident.