WASHINGTON The U.S. Federal Aviation Administration said on Tuesday it will hold runway safety meetings at 90 airports over the next few weeks after a series of troubling close call aviation incidents.

On Aug. 12, the FAA and National Transportation Safety Board (NTSB) said they were investigating a near collision between a Southwest Airlines Boeing 737 and a Cessna Citation 560X business jet in San Diego.

The NTSB is investigating seven runway incursion events since January, including the San Diego incident. In March, the FAA said it was taking steps to improve its air traffic control operations after near-miss incidents telling employees: "There is no question that we are seeing too many close calls."

(Reporting by David Shepardson; Editing by Kirsten Donovan)