clarissa, you heard these booms behind you as biden was speaking earlier today. what's happening right now? >> we heard those booms. we have heard more since. actually while you were just playing our piece on air, we heard another series of explosions coming from that direction some ways in the distance. but we are hearing now from the harkiv civil military administration. they had a series of announcements and some guidelines for people. they're appealing for volunteers for drivers. they have said that that's not for military drivers, but they need drivers to help make sure that supplies are still able to get around and that services are still functioning. they say that there's been a gas supply interruption due to damage on a pipeline somewhere in the area. they also said that 400 people came out today, jake. i thought this was so interesting. 400 people came out to donate blood. they're trying to build up a large stock of blood here in the