Southwest Airlines says no one is injured after two of its jets touched on the ground at San Diego's Lindbergh Field.

Southwest spokeswoman Whitney Eichinger says a wingtip of one jet clipped the tail of another jet as it was backing out of the gate Thursday around 3:45 p.m. PST. Both were Boeing 737s.

Both planes were taken out of service and customers are being moved to other aircraft. One flight is headed to Kansas City International Airport and the other to San Francisco International Airport.

Federal Aviation Administration spokesman Ian Gregor says the aircraft were not under FAA air traffic controllers' direction at the time.