The accident happened at Pearson International Airport (file pic)
A 15-month-old boy has died after falling 15m (49ft) over a glass railing at Pearson International Airport in Toronto, Canada.
He was with his family when he fell from the upper departures level in Terminal One.
Emergency services were called at 1920 EST (0020 GMT) on Sunday but the boy, who had serious injuries, died later at Etobicoke General Hospital.
Police have not identified the family but said the death was an accident.
The family, believed to be from Burlington in Ontario, were reportedly due to begin a holiday in Argentina.
Constable JP Valade, from Peel Regional Police, told the BBC News website the boy had been in his mother's arms just prior to the accident, with his father, grandmother and a four-year-old sibling nearby.
He said an autopsy had been ordered with the results expected by Tuesday.
He said police were not going to go into too many details about what had happened, however investigators had spoken to a number of witnesses and reviewed airport surveillance footage before coming to their conclusion.
Trish Krale, spokesman for the Greater Toronto Airport Authority, told Canadian national newspaper the Toronto Star that although part of the terminal was closed for three hours, flights were not affected.
She said there were no plans to change the structures of the airport's terminals and that the accident was a "tragic, isolated" situation.