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The 13-year-old boy who was apparently bitten by a shark while "free-diving" on Sept. 29, 2018, in Encinitas, Calif. The family released a photo of the boy but not his name. (Photo: Family photo via Rady Children's HospitalñSan Diego) 
  
 A kayaker who helped rescue a teen attacked by a shark off a California beach says the shark stalked the kayak during the life-and-death race to shore. 
  
 The 13-year-old boy was "free diving" – without scuba gear – when he was attacked Saturday morning off Beacon's Beach in Encinitas, 25 miles north of San Diego. The youth was airlifted to a local hospital and his condition was stabilized, Encinitas Lifeguard Captain Larry Giles said. 
  
 Chad Hammel said he was lobster hunting with two friends when he heard shouts. Hammel thought someone was excited because they had caught "some big bugs" on the first day of the lobster-diving season. 
  
 "But it kept going, and I realized he was yelling, 'I got bit!'" Hammel told OnScene TV. 
  
 More: Shark attack injures boy, 13, at Southern California beach 
  
 More: Suspected shark attack kills man in his 20s near Cape Cod, police say 
  
 Hammel said he and his friends swam over with the kayak and pulled the boy, 13, inside. 
  
 "His whole clavicle was ripped open," Hammel said. "You could see the ball-and-socket joint, everything." 
  
 Hammel said his friends were off-duty first responders and worked to calm the boy and stanch the bleeding as they brought the kayak to shore. 
  
 "We started heading in, and the shark was behind the kayak; he didn't want to give up yet," Hammel said, adding that the kayak was "full of blood." 
  
 The youth was conscious when he was airlifted to Rady Children’s Hospital-San Diego. Witnesses said the attack happened in about 9 feet of water, more than 100 yards from shore, Giles said. Some estimated the shark at 11 feet long. 
  
 The first day of lobster-diving season draws big crowds, and dozens of people were on the beach and in the water when the attack occurred shortly before 7 a.m. 
  
 Giles said investigators will attempt to determine the species of shark that attacked the boy. A shark had been spotted in the area a few weeks ago, he said. In April 2017, a woman was badly injured by a shark off of San Onofre Beach, about 30 miles north of Encinitas. 
  
 Two weeks ago a Brazilian tourist was killed by a shark while boogie boarding off of Cape Cod in Massachusetts. 
  
 Giles said Beacon's and other nearby beaches would be closed until Monday morning, and a surf contest scheduled for Saturday was canceled. 
  
 Encinitas resident Leslie King surfs and hunts lobsters in the waters off Beacon's Beach. She said she won't be deterred by the attack. 
  
 "Surfers and divers know the risks," she said. "I've never heard of any surfer or diver say they are going to stop after a shark attack – if it doesn't involve them." 
  
 Read or Share this story: https://usat.ly/2NUKTcY ||||| LOS ANGELES (AP) — A 13-year-old boy skin diving for lobsters was attacked by a shark Saturday along the Southern California coast but was quickly pulled from the water by other divers and flown to a trauma center, authorities said. 
  
 The boy was in critical but stable condition more than nine hours later at Rady Children's Hospital-San Diego, spokesman Carlos Delgado said. 
  
 The boy underwent surgery but no other information about him, including his name, was released. 
  
 The boy suffered traumatic upper torso injuries, city Lifeguard Capt. Larry Giles told reporters earlier at Beacon's Beach in Encinitas, about 27 miles (43 kilometers) north of downtown San Diego. 
  
 The attack occurred just before 7 a.m., during the opening hour of California's popular spiny lobster season. 
  
 The boy was attacked in about 9 feet (2.7 meters) of water approximately 150 yards (137 meters) offshore. He was brought to shore by three bystanders, Giles said. 
  
 Emergency responders arrived, and the boy was flown by helicopter to the trauma center. 
  
 "He was conscious, he was above water, and the bystanders were able to get him up on the beach ... and he was talking all the way to when he was being transported," the captain said. 
  
 The three rescuers were identified only as an off-duty police officer from nearby Oceanside, an off-duty state lifeguard and a friend who were also diving for lobsters. Giles said the trio provided a "tremendous amount of aid to that young man." 
  
 Witnesses estimated the shark was about 11 feet (3.3 meters) long, but the type was not known, he said. 
  
 Lifeguards immediately turned to clearing people out of the water. Giles noted there were multiple other divers in the area. 
  
 The waters off about 4 miles (6.4 kilometers) of beach were ordered closed for 48 hours, and a nearby surfing competition was canceled before it got underway. 
  
 Lifeguards were being brought in from various agencies while a San Diego County sheriff's helicopter scouted from the air. In the immediate hours after the attack, there was no sign of shark activity or signs of typical prey such as seals, dolphins and porpoises, although a seal was reported in the area earlier, Giles said. 
  
 "This is a nonfatal incident; we don't want anybody else getting injured," he said. 
  
 The most recent fatal shark attack in the area was in 2008 when a swimmer was killed at Solana Beach. A more recent attack along the Camp Pendleton coast of north San Diego County was not fatal. 
  
 Earlier this month, a man died after being bitten by a shark off Cape Cod, Massachusetts. |||||
Output:
Shocking as it was, a witness offered new details in the story of a California teen bitten by a shark that suggest the attack could have gotten worse. Per USA Today, a kayaker who helped rush the bloodied victim out of the water following Saturday's incident in Encinitas said the predator tailed his vessel as it made its way to shore. Chad Hammel told the paper he was among the first to respond to the 13-year-old's shouts for help. When they pulled the unnamed teen into the kayak, Hammel said the shark wasn't far behind and wasn't ready to give up. Hammel provided gory details about the boy's injuries, stating that it appeared as if the flesh at his collar bone had been ripped open. Hammel said he did what he could to calm the boy, who was conscious, before he was soon airlifted to a hospital. He underwent emergency surgery and was subsequently listed in critical but stable condition. Per the AP, the boy was at the shore north of San Diego skin diving at the start of the popular spiny lobster season when the attack occurred. While witnesses estimated the shark was around 11 feet long, officials were still working over the weekend to determine the species. (Just weeks ago, a boogie boarder lost his life across the country in Cape Cod's first fatal shark attack in 82 years.)