A U.S. Marine Corps F-35B Lightning II fighter jet was involved in an incident Friday morning at Marine Corps Air Station Miramar in San Diego, California. Emergency crews responded to the scene following reports of black smoke emanating from the aircraft. The incident occurred around 10 a.m. local time. The charred remnants of the aircraft were visible at the base, which serves as home to the 3rd Marine Aircraft Wing. The cause of the incident and whether any personnel were injured remain unclear at this time.