Turkish Airlines Boeing 777 carrying 300 passengers and crew made an unscheduled landing at Belgrade's Nikola Tesla Airport after an unattended cellphone was found onboard, Associated Press reports.
During the flight, cabin crew found the device and after making announcements pilots contacted Nikola Tesla Airport to make the unscheduled landing.
After security checks, no suspicious issue was detected, the phone having been forgotten by a passenger from a previous flight.
The flight continued its journey to London after re-boarding and re-fueling.