attempt to claim crimea from ukraine. russia claims at least three people were killed. a russian investigative committee arrived this morning to inspect the damage and so far no one has claimed responsibility for the blast. cnn s fred pleitgen is live for us from kyiv with the very latest on this. fred, russian officials are now saying traffic has resumed on the bridge? how is that happening? reporter: well, they are saying that the traffic is in reverse on that bridge. they are trying to clear the cars off that bridge but trying to get the traffic moving again as fast as possible. essentially, what they are saying is that all of this happened, this explosion happened in the early morning hours of this morning. when the lacey latest that they have is a struck they say exploded, even though it s not exactly clear whether or not that is the case, that a truck blew up. we have some of that video of that explosion taking place, which seems to have been massive. as a result ther