Two skydivers in California died Saturday when their parachute apparently failed to open during a tandem jump, authorities told CNN.
Although the San Joaquin County Sheriff's Department has not publicly identified the victims, the owner of the skydiving center told Fox News that one victim was 18 years old and was jumping for the first time.
The 18-year-old's family was watching when he hit the ground, authorities said.
Bill Dause, owner of the Lodi Parachute Center, told CNN the other victim was an instructor in his mid-20s. That instructor reportedly had 700 jumps worth of experience.
"The parachute failed to eject properly. We have no explanation why," Dause said. "The only thing it looks like is something may have gone out of sequence (and) that may have caused the problem."
The bodies of both victims were found in a nearby vineyard.
The Federal Aviation Administration is still investigating the incident.