A 38-year-old kiteboarder has died after being attacked by several sharks off the coast of Florida near Stuart Beach.
Stephen Howard Schafer was kitesurfing in an unguarded water zone.
A lifeguard even tried to rescue the kiteboarder, but he was severely wounded and unconscious and died in the local hospital.
Authorities have closed a few beaches as they have been spotting hundreds of dangerous sharks by the Florida coast in the past weeks.
Schafer was an experienced kiteboarder. The last shark bite fatality in Florida occurred in 2005.