A remembrance service has taken place to mark the 80th anniversary of the sinking of HMS Royal Oak.

The ship was anchored at Scapa Flow in Orkney when it was torpedoed by a German submarine during World War Two on October 14, 1939.

With the loss of around 835 men and boys, it remains as one of Britain's most controversial naval tragedies.

A series of poignant events - including a church service, poppy planting session and exhibition - took place across the weekend.

On Monday morning, a service took place at the Garden of Remembrance.

Vessels will then depart from Scapa pier to hold a further service of remembrance over the wreck of HMS Royal Oak, during which 835 red carnations will be placed into the water as well as bio-degradable wreaths.