Not much in the way of detail being confirmed here at the base but what we understand to have happened is this - a British soldier at the base was overpowered, his vehicle was taken from him by a man who has been described as locally employed contractor, but I am told he is not an Afghan.
He drove the truck onto the main runway just as Leon Panetta's plane was approaching. He crashed, the circumstances of that crash are still unclear, but a flash was said to come from his vehicle. It's not being described as an explosion at this stage.
He was taken from the truck, said to be on fire at the time, and is now in hospital at the camp being treated for severe injuries.
More top news
Defending champions Arsenal squeezed into the FA Cup final despite a spirited fightback from Reading, who forced extra-time
A detective who led investigations into the Valley Parade fire tells ITV News there is "unequivocal" evidence the disaster was an accident.
Tonight will start off clear in many areas, but cloud will increase from the east overnight, bringing some light and patchy rain.