Undocumented footage coming from the battlefields of Ukraine today shows a Russian BTR-80 taking several devastating hits, presumably from Ukrainian indirect fire.

Judging by the consistency of the two impacts, it's safe to assume these were some variant of a precision-guided missile/projectile. Along with that, munitions such as RPG's and even mortars can be ruled out due to the scale of the explosion. Not to say it's impossible, but very unlikely smaller explosive munitions would cause such a blast.