A South African man suffered horrific injuries after being viscously attacked by a shark while surfing along the country's coastline this week ... and the photos of his wounds are gruesome.
It happened on Wednesday in Jeffreys Bay ... when 40-year-old Jason Lammers had a terrifying encounter in the water with a shark.
Lammers' surfing buddy, Mark Krieger, tells TMZ Sports the scene was very scary ... saying when he pulled up to the surf spot, Lammers was out of the water and bleeding profusely in a nearby parking lot after being bit.