DISCOVERY BAY — A jet-ski crash near the Discovery Bay Marina launch ramp on Sunday killed a person, authorities said.

One dead after a jet ski flips near Discovery Bay Marina. Marine Patrol is investigating and asking for witnesses to come forward.

Authorities are investigating after one person died Sunday when a personal watercraft flipped over near a boat launch ramp in Discovery Bay.

Questions surfaced about how a 911 call was handled back in July. A report obtained by 10 Investigates shows dispatch did not immediately send first responders.

Review finds 911 response was delayed in Jet Ski accident that led to man's death To stream 10 Tampa Bay on your phone, you need the 10 Tampa Bay app.