The Kerch bridge from Russia to Crimea has been hit by a huge explosion.
Images from the bridge showed a fiercely burning fire engulfing at least two railway carriages from a train on the bridge, accompanied by a vast column of black smoke, and one half of the parallel road bridge collapsed into the Kerch Strait.
The explosion, which witnesses said could be heard miles away, took place before 6am on Saturday while a train was crossing the bridge. Russian officials said a car bomb was to blame