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Story highlights

NEW: Three passengers rebooked on another flight after being questioned by FBI

Southwest Flight 5929 was diverted to Kansas City after passengers acted "unruly," officials say

After police dogs searched the plane, the flight continued to Los Angeles

(CNN) —  

A Southwest Airlines flight from Indianapolis to Los Angeles was diverted to Kansas City on Sunday morning because of suspicious behavior by some passengers, according to Kansas City airport officials.

“We are characterizing (the behavior) as unruly,” airport spokesman Joe McBride told CNN in a statement.

Several passengers did not follow “crew instruction upon takeoff and continued to exhibit suspicious behavior inflight,” according to Southwest Airlines.

The passengers were taken off the plane and questioned by law enforcement, according to the FBI.

All other passengers deplaned as police dogs searched the plane as a safety measure, McBride said.

The passengers reboarded and Flight 5929 continued to Los Angeles.

After questioning, the three “unruly” passengers were rebooked on a later flight.

Their nationality has not been released.

CNN’s Mayra Cuevas, George Montgomery and Chuck Johnston contributed to this report.