An Evergreen Marine-operated containership that has been blocking the Suez Canal shifted during refloating efforts.

But the move was not enough to refloat the vessel as uncertainty persists over the key waterway's reopening, and it came as the queue of vessels waiting for transit soared well into the hundreds.

An armada of tugs sent to free the 20,388-teu boxship Ever Given (built 2018) were able to move the ship 29 metres by the time efforts were halted on Saturday night, Bloomberg News reported.