The Federal Aviation Administration is investigating after a Southwest Airline pilot said a green laser was pointed at the side of the plane as it prepared to land at Logan International Airport Wednesday night, an official said.

Southwest flight 468 was 16-miles from the airport and was flying at 16,000 feet when the pilot noticed the laser had illuminated the right side of the plane at 8:42 p.m., FAA spokeswoman Kathleen Bergen said in an e-mail.

The plane landed safely, Bergen said.

The FAA notified law enforcement and will investigate the incident, Bergen said.

Adam Sennott can be reached at adam.sennott@globe.com.