B737 Undifferentiated or Other Model
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 219; Flight Crew Total 16068
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor; Flight Deck / Cabin / Aircraft Event Illness / Injury
Air Traffic Control Provided Assistance; Flight Crew Landed in Emergency Condition; Flight Crew Diverted
Aircraft
During climbout of ZZZ; Flight Attendant (FA) called and said there was a fuel odor in the cabin. Shortly after that the FAs called and said a passenger had gotten sick. At that point we [notified ATC]; informed ATC that we wanted to divert to ZZZ1. We called ZZZ1 station OPS and informed them that we were diverting to ZZZ1. On approach the FAs informed us that the smell had diminished. Approach and landing (overweight) was uneventful. Emergency equipment met the aircraft as we taxied clear of [runway]. The Emergency Crew Captain wanted to deplane while the aircraft was still on the taxiway. We asked them to walk around the plane and if they saw any leak we would deplane on the taxiway. They saw no leaks so we taxied to gate and waited for marshallers to arrive to marshal us to the gate. After parking at the gate; Maintenance informed us that there was a fuel leak from the center fuel tank.
[Report narrative contained no additional information]
B737 flight crew reported fuel odor in cabin and resulting passenger illness.