The incident took place in February but did not come to light for several months.
The incidents, which occurred from 1981 to 1984, came to light last year when the former student, now 34, told the police about them.
The incident came to light when one of the children, a girl, complained to her mother.
The incident over the island came at a sensitive moment for both countries.
The 1989 incident also came up later in the day.
The most significant incident of the race came on lap 58.
"Any reason that incident should come to mind right now?"
At first, the incident came and went without much clamor.
The incident comes as subway crime continues to fall in the city.
The incidents could not have come at a worse time for the child welfare agency.