is that this could still very well be an incident taking place. at this point in time london police giving all the information they can. it's unclear whether or not it's terror reletted. but i can tell you from where i am and how shaken the civilians are that people are taking this very, very seriously and the authorities are as well, ana. >> you talked about the gufr. do we know -- gunfire. do we know if that gunfire came from police or somebody else? >> well, you know what. it's unclear where that gunfire came from. certainly the eyewitness we spoke to didn't know where it came from. when i came here on the scene a little later there were some pretty loud bangs. unclear whether those were gran aids or stun guns, it couldn't be told. you don't have many guns in the