Emergency teams are responding to a serious incident at London Southend Airport following a small plane crash shortly after takeoff, which resulted in a massive fireball and thick plumes of smoke. The Beech B200 Super King Air jet crashed around 4:00 PM, leading to the immediate cancellation of all flights at the airport. Eyewitnesses reported seeing the aircraft engulfed in flames and noted that pilots appeared to wave to children just before the crash. Emergency services have evacuated nearby areas as they work to manage the aftermath of this devastating event.