Chilling image of SeaWorld orca trainer taken moments before being dragged to her death by trapped killer whale

The chilling photo taken just moments before a SeaWorld trainer was dragged to her death by a captive killer whale has resurfaced online, reminding many of the tragedy that unfolded more than 14 years ago.

On 24 February, 2010, SeaWorld trainer Dawn Brancheau lost her life when a performance with a whale she had 'built a great relationship with' took a devastating turn.

At the end of the Dine With Shamu show Dawn had performed with a male orca named Tilikum, she was lying on a slide-out on the edge of the pool rubbing the orca's head as part of the end-of-show routine.

Dawn had vast experience working with Tilikum, having worked with the orcas at the Orlando park for 15 years.

Without warning at the end of their routine, however, Tilikum suddenly snatched the 40-year-old's ponytail and dragged her into the pool where, in front of hundreds of horrified visitors, she desperately struggled to free herself.

Tilikum thrashed Dawn around the pool while SeaWorld staff tried to distract him with food and nets.

But it was no use.

The orca - nicknamed 'Tilly' - held onto Dawn for 45 minutes, reportedly severing her spinal cord, scalping her and tearing off an arm in the attack.