The photos show a largely intact but fire-damaged aircraft next to a 7000ft runway marker, ejection seats not used, and a badly damaged vehicle with an airfield ops hazard light fitted on the roof. Speculation only at this stage, but if this was an on-runway collision as seems possible, you are left with either a departure without clearance or the presence of a vehicle that was either incorrect (ie unauthorised) or correct (authorised) but overlooked when the take-off clearance was issued. The other plausible scenario would be a combination of runway excursion and really bad luck.