MINNEAPOLIS (AP) - A 9-year-old Minneapolis boy was able to get through security at a Twin Cities airport and get on a plane without a ticket.

Metropolitan Airports Commission spokesman Patrick Hogan says security screened the boy at Minneapolis-St. Paul International Airport shortly after 10:30 a.m. Thursday. He then boarded a Delta flight leaving for Las Vegas at 11:15 a.m.

Hogan says the flight crew became suspicious in flight and contacted Las Vegas police, who met them when they landed and transferred the boy to child protection services.

Delta and the Transportation Security Agency released statements noting they were investigating.

Hogan says the boy was expected to return to the Twin Cities.