A helicopter collision in Rio de Janeiro on Sunday morning resulted in the deaths of all six people on board. Both helicopters involved crashed after impacting each other mid-air. The cause of the collision remains undetermined as authorities have launched an investigation. Details surrounding the circumstances leading to the crash are currently unavailable. Rescue teams responded to the scene following the incident, but confirmed no survivors. This event marks a significant aviation incident for the city of Rio de Janeiro, prompting questions about airspace safety and operational procedures.