The three children were believed to be around five years old.
One of the crutches was custom-made for Shairid to ensure long-term use.
Fortunately, the boy in the chokehold regained consciousness later on.
The lizard used a nearby railing to dislodge the fish and later broke the offending spines before eating its prey.
The girl previously filed a police report and alleged that her family had been threatening her.
The affected area has been cordoned off, and all work at the site has been halted.
Industry sources say that Gaga could perform four to six shows at the National Stadium.
The incident was blamed on an "input error".
Both areas are fairly remote and seldom frequented.
The car was believed to have self-skidded, said the police.