11.   Several have caused commercial flights to make unscheduled landings so they could be rushed to hospitals for emergency treatment.

12.   Some have resulted in five unscheduled landings, the Journal said.

13.   The jet made an unscheduled landing in Bermuda, where the passengers and crew members were treated at a hospital for head and neck injuries.

14.   The jetliner made an unscheduled landing in Boston, where Reid was arrested.

15.   We ran into a Canadian couple who related the harrowing experience of making an unscheduled landing at a small regional airport near Chongqing due to weather.

16.   A British Airways plane made an unscheduled landing Saturday evening after crew members reported fumes in the cabin.

17.   A jetliner from Dubai-based Emirates airline made an unscheduled landing in Tehran on Sunday following a bomb threat, the Islamic Republic News Agency reported.

18.   A jetliner of the Dubai-based Emirates airline made an unscheduled landing in Tehran on Sunday following a bomb threat, the Islamic Republic News Agency reported.

19.   A jet of the Dubai-based Emirates airline made an unscheduled landing in Tehran Sunday after a bomb scare, the official Islamic Republic News Agency reported.