A flurry of shark attacks has rocked Sydney, Australia over the past few days.

In just over 24 hours, there have been three attacks – the most recent being an 11-year-old surfer at Dee Why Beach, who managed to come away unscathed; then a victim believed to be in 20s, who was surfing at North Steyne beach, who is in critical condition.

Footage of the latter shows the moment the shark made contact with the surfer.

The attack at North Steyne happened just after 6:00pm on Monday. Two others were in the water when the unidentified surfer was attacked. One, going only by the first name Ash, told the Manly Observer that the shark was a “five-meter [16-foot] monster.”

Assisting in the rescue, Ash recounted:

“My mate put him on his board and was pushing him into shore and there was blood on the board and I was trying to pull them to help out. The guy was silenced from the pain, but still conscious, and I kept telling him to not look at his leg and we just kept paddling.”

Once onshore, the victim went into cardiac arrest. First responders revived the man using CPR and a defibrillator. And he was transported to the hospital.

Earlier that morning on Monday, an 11-year-old surfer was attacked by what was believed to be a bull shark, possibly four-to-five-foot long. Speaking to the Manly Observer, the young surfer whose identity has been withheld said:

“I was on the board when the shark came up and bit it. I got knocked off the board. One of the guys out there went over to me and helped me get back in to shore quickly.

“I’m physically fine but I’m obviously rattled and the board has a chunk taken out of it and a couple of bite marks in it.”

Despite the chunks from his board, the boy walked away unscathed.

Previously, on Sunday, another shark incident rocked the region when a 12-year-old boy was attacked by a “large shark” while swimming in the Sydney Harbor at Nielsen Park in the suburb of Vaucluse. That makes three encounters in just over 24 hours.

“All beaches on the Northern Beaches are closed until further notice, and this will be reviewed on an ongoing basis.”