The 6ft 9in-long shark then drags the kayak by the fishing line into choppy waters where Mr Smith calls for friends in a nearby boat to help tow him to calmer seas.
However before the fisherman can be moved to safety the shark causes a 'swell' which capsizes the kayak leaving Mr Smith in the water with the animal.

Mr Smith, from Moville, County Donegal, said: 'I go fishing for shark a couple of times a year off Donegal in Ireland.

'On that particular day, it was calm inside the headland but once you got outside it was rough.

'The porbeagle is a very clever shark. They're notoriously difficult. About 15 to 20 minutes I'd been fighting him.'

He continued: 'Towards the end of the fight, he took me out [to sea] where it was very bad.

'Some lads that I know were there so I gave them a shout and said can you give me a quick tow out of this rough stuff – then I can get the shark up and let him go.