Diver's close call with great white shark caught on camera

Dec. 11 (UPI) -- A video going viral on social media appears to show a scuba diver's uncomfortably close call with a massive great white shark -- but some are questioning its authenticity.

The video, which was first shared by Dennis Dempsey on the Ocean Imaging Action Facebook page before being shared on the SA Spearfishing page on Facebook and Australian ocean adventuring group Young Bloods Inc's Instagram, appears to show a gargantuan great white shark swimming over the man's head, with its open jaws coming within inches of the man.

SA Spearfishing said the video was filmed in South Africa by the diver's son.

Some commenters questioned the authenticity of the footage.

"Ahhh... the Great White Photoshop, sadly these beautiful creatures are becoming rarer since the heady days of 'jumping out of the water at a diver climbing up a rope ladder into a helicopter with the golden gate bridge in the background,'" one skeptical commenter wrote.