Funerals have been held for nine of the 11 women killed when a private Turkish jet crashed in Iran while flying a bride-to-be and her friends back to Istanbul from a bachelorette party in the United Arab Emirates.

Mina Basaran, the 28-year-old daughter of the chairman of Turkey's Basaran Investment Holding, was killed along with seven friends and three female crew members.

Most of the funerals held Thursday were in Istanbul. A tenth funeral was scheduled to take place Friday. The remains of a pilot have not yet been returned from Iran.

The cause of the crash is under investigation.

The plane took off Sunday from Sharjah International Airport in the UAE and crashed in Iran's Zagros Mountains a little over an hour into the flight.