here where it's hard to imagine that that would have been incoming fire. that also sounded like something really, really big was just shot into the direction of ukraine. that of course is after the past couple of days. we've seen a massive military build-up here especially in the belgorod area. of course we are very close to kharkiv, very close to where clarissa is. and as we've been coming in here we've also been seeing that military activity by the russians. we drove in here and all the military trucks are driving around there. they all have their license plates turned around, seemingly trying to mask their movements, maybe also trying to mask people trying to see what units those trucks were with. so there's been a big military build-up. we can still sort of hear in the distance that steady stream of what sounds like artillery at work, what sounds like cannons being fired here. belgorod of course one of the main areas where the russians have concentrated their forces, don. throughout the day i traveled really on the entire border