Updated

LOS ANGELES -- Officials say a Southwest Airlines jetliner carrying 142 people diverted to Los Angeles Sunday night because of a burning electrical smell in the passenger cabin.

The unscheduled landing of the flight from Oakland, Calif., to San Diego came two days after another Southwest aircraft, a Boeing 737-300, made an emergency landing in Arizona after a hole was torn in the passenger cabin ceiling. No one was seriously hurt.

Southwest spokeswoman Whitney Eichinger says passengers Sunday changed planes at Los Angeles International Airport and continued on to San Diego without further incident. No one was injured.

Airport spokesman Harold Johnson says the aircraft arrived at 8:11 p.m. after reporting a mechanical problem.

Eichinger says the cause of electrical burning is being investigated, but it "was completely unrelated to the issue in Arizona."

She says Sunday's aircraft was also a Boeing 737 but she didn't know if it was the 737-300.