An air ambulance helicopter crashed in southern Iran, killing all on board, Iranian media reported on March 25.
Red Crescent spokesman Mostafa Mortazavi was quoted by ISNA news agency saying seven were killed, including the patient, crew members, and medics.
Other Iranian news outlets said as many as 10 were killed, including possibly people in vehicles on the ground.
The helicopter went down about 30 kilometers south of the southeastern city of Shiraz as it was taking a patient in serious condition from a remote area to Shiraz.
A local official told state TV the cause of the crash was under investigation. Iran's official news agency IRNA said the area has experienced wind, heavy rainfall, and low visibility in recent days.
Some news reports said the helicopter struck a high-voltage power line.
Air accidents are not uncommon in Iran, with many blamed on aging aircraft and poor maintenance.
Based on reporting by Reuters, AP, and AFP