Eight others survive accident off California's Shelter Island.
Two people died and eight others were injured when a boat overturned near California's Shelter Island Sunday.
Ten people were on the 36-foot sail boat, including three children who appeared to be between 10-12 years old.
All of them were thrown into the water when the vessel overturned.
"Harbor police brought in a number of victims from a capsized boat to the Shelter Island boat launch ramp," said Maurice Luque, spokesperson for San Diego Fire and Rescue.
Within minutes, there were more than 50 firefighters and 10 ambulances responding to the scene.
Hundreds of people gathered in shock, trying to make sense of the incident.
Witnesses said the Harbor Police kept coming back and forth, bringing in more victims to the dock.
"The survivors were understandably shaken, so they were shivering," added Luque. "They were cold,
they had hypothermia from being in the water."
Eight people, including three children, ended up in the hospital.
Witnesses say paramedics tried to resuscitate the two men killed in the accident by giving them CPR for roughly 30 minutes.
According to Luque, most of those aboard the vessel were members of the same family.
Exactly why or even how the boat overturned is still unclear.
Part of the investigation led officials underwater, to the area where the boat sank.
The boat was taken out of the water Sunday night at around 10 p.m.
The surviving victims were taken to Scripps Mercy and UCSD Hospital.
All were released shortly after with no serious injuries.