A surveillance camera captured video of the moment that a bomb detonated and blew up a large portion of a key bridge connecting Crimea with Russia. A Ukraine official vowed that the huge explosion is only “the beginning.”..At sunrise on Saturday, a massive explosion destroyed part of the Kerch Bridge – a 12-mile road and rail bridge that links Crimea and Russia. Part of the bridge collapsed into the Kerch Strait. Russian authorities said three people were killed in the blast.