Iranian state media said the plane was a Canadian-made Bombardier Challenger 600 aircraft.
A private plane flying from Sharjah to Istanbul crashed in Iran on Sunday night killing 11 people, according to reports.
"We can confirm that a Turkish private jet, while passing through our airspace, disappeared from the radar and crashed near Shahr-e Kord", a spokesman for Iran's Civil Aviation Organisation told state television.
He added the bodies of the plane's passengers have been burned completely and their identification will become possible only through DNA tests.
The plane was owned by the private holding company of Turkish businessman Huseyin Basaran, and carried eight passengers and three crew, an official for Turkey's transport ministry said.
The Başaran Investment Holding operates in tourism, finance, construction, tourism, aviation, cement, and energy.
Authorities said the flight from the United Arab Emirates to Istanbul crashed in a mountainous region south of Tehran during heavy rains.More news: 'There Was Just Sinister Energy'
Mina Basaran, the 28-year-old daughter of Basaran's chairman who is part of the company's board of managers and is in line to run the business, posted photographs on Instagram of what appeared to be her bachelorette party in Dubai.
The plane took off late yesterday afternoon and climbed to a cruising altitude of just over 35,000 feet.
The state-run IRNA news agency and state television said rescuers were trying to reach the scene of the accident.
The cause of the crash was not immediately clear.
Iranian news agencies are reporting that a Turkish plane traveling in Iran's air space has crashed.
ISNA earlier quoted emergency services as saying the wreckage was burning and was clearly visible.
A search and rescue operation is underway.