that threatens to cut off annexed peninsula from Putin's reinforcements A huge explosion has hit the only bridge between Crimea and Russia, a crucial supply line for Putin's forces Footage shows the blast following the rail bridge engulfed in flames and the road bridge next to it collapsed The cause of the explosion is not known but Ukraine has been targeting Russian logistics in recent weeks Footage appears to show a truck exploding on the road section of the bridge as sabotage is suspected A crucial bridge linking Russia and Ukraine has caught fire in a spectacular explosion in a...