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
The pilot of the missing MH370 plane plotted a course to the southern Indian Ocean on a home flight simulator, investigators have said.
Joe Campbell said he wanted to adopt Kiran Sheikh but was told he couldn't because he wasn't married.
Annual rail figures reveal the most overcrowded service in spring/autumn 2015, was an early morning train from Brighton to Bedford.