San Diego police are investigating after a 9-year-old girl died hours after she had undergone dental surgery, officials said. Silvanna Moreno was found unresponsive in her bed hours after being placed under anesthesia at a Vista dental office March 18, according to the San Diego Medical Examiner’s Office.

A 9-year-old girl in California died after a dental surgery during which she was under anesthesia, according to the medical examiner.

A sea lion in Southern California attacked a teenager while she was trying out to become a junior lifeguard cadet. KNBC's Hetty Chang reports.

The Marine Mammal Care Center has been working to save sick sea lions in Southern California, including one on the shore of a beach. Despite the swift response time from authorities, the survival rate for the California sea lion is roughly 50%,

A California teen is recovering after she was attacked by a sea lion. The 15-year-old was training to become a junior lifeguard in Long Beach at the time. Phoebe Beltran said she received multiple injuries from the sea lion,

The toxicity of this particular bloom seems to be a lot higher, ” said a marine biologist. “Animals are in worse shape than they have been in the past.”

A sea lion attacked a teenager in the ocean off of Long Beach. The victim was in the middle of a swimming test for the Long Beach Lifeguard cadet program.

A teenage girl and junior lifeguard candidate was attacked and bitten in the arm by an aggressive sea lion during a tryout in Long Beach on Sunday, March 30. The attack occurred around noon in the area of Ocean Boulevard and Cherry Avenue,