A Samsung J7 smartphone caught fire on a Jet Airways flight bound to Indore from New Delhi causing mid-air panic. The flight staff were unable to extinguish the fire and had to drop the phone in a tray of water to put off the flames.
https://www.notebookcheck.net/Samsung-J7-catches-fire-in-an-Indian-flight-causing-a-mid-air-scare.259224.0.html