"Get out of there immediately!" says the announcer.
Why all the alarm?
It just so happened that pro surfer Mick Fanning was seemingly about to get eaten by a shark! As the video below shows, he's minding his own business and getting ready to catch a wave at the World Surf League's J-Bay Open competition in South Africa when a menacing fin pops up near the back of his surf board during the finals. The horn sounds as jet skis race out to rescue Fanning and another surfer.
The sight was scary for Fanning's mother, Elizabeth Osborne, who saw her son punch the predator in its back as she was watching the event live on television.
"I just couldn't believe what I was seeing," Osborne told NBC News' Australian partner Channel 7 after the incident.
The shark ended up cutting the leash that attaches Fanning to his surfboard.
After a little time to process the alarming incident, tournament official announced that there were actually two sharks lurking around in the waters where the surfers were competing. It's apparently the fist time in professional surfing history that a tournament has been put on hold due to a shark attack.