Istanbul's governor, Huseyin Avni Mutlu, said eight people have been detained and that an investigation has been launched into the incident that occurred yesterday.
Mutlu said: "The laws are clear. If anyone is not abiding by these laws, they will be held accountable."
Labour unions were organising a demonstration in Istanbul today to protest problems with worker safety in the country.
The workplace accident comes four months after 301 miners were killed following an explosion and a fire at a coal mine in western Turkey.