SALT LAKE CITY — Five Southwest Airlines flights were delayed up to an hour and 20 minutes at the Salt Lake City International Airport Monday because of a suspicious package.

The package was found in concourse B about 5 a.m., said airport spokeswoman Barbara Gann. It was left in an "airline operational area" and the owner "wasn't evident," she said.

Out of an "abundance of caution," five Southwest flights were delayed while the FBI and Salt Lake fire hazardous materials crews investigated the package which was determined to not be harmful, Gann said.

The package was taken by the FBI for further investigation. It was unknown Monday who left the package in the concourse or if there was any malicious intent.

Pat Reavy Twitter: DNewsCrimeTeam