The highest-ever wave detected by a buoy has been recorded in the North Atlantic ocean, the World Meteorological Organisation has said.
The 19-metre (62.3ft) wave happened between Scotland and Iceland, off the Outer Hebrides.
Giant waves can be created in the north Atlantic, which stretches from the Grand Banks plateau off the coast of Canada to the area south of Iceland and west of the UK.
In winter, wind circulation and pressure systems cause extratropical storms, sometimes known as bombs, the WMO said.
The height of a wave is measured from the crest of one to the trough of the next.
Below: Compilation of the biggest waves ever surfed at Nazare Portugal. The waves at Praia do Norte, Nazaré, are famed for being among the largest in the world. Uploaded to Youtube by