A mission by an unmanned Space X Falcon-9 rocket has ended in failure after the craft exploded after lift-off from Cape Canaveral in Florida.
The rocket was en route to dispatch a cargo ship to the International Space Station.
The lower segment of the rocket was designed to rotate and use its engines to bring itself down to a floating barge at sea.
It was US company SpaceX’s third failed attempt at the manoeuvre. Bids in January and April ended in rockets being lost in the Atlantic Ocean.