The Herald Sun is reporting that a South African man disappeared after being attacked by a shark off the coast of Port St. Johns. Witnesses reported seeing the man waving his hands frantically before disappearing under the water, leaving only a cloud of blood behind. The victim’s surfboard washed ashore and was retrieved, according to John Costello at the National Sea Rescue Institute. The NSRI are investigating the disappearance but no signs of the victim have turned up. The species involved can not be identified, since there are no bite marks to analyze. This is the second attack at the popular South African beach this year, according to the Herald Sun report. In January, a 26-year old lifeguard was fatally attacked by a bull shark.