A child has managed to sneak aboard a plane flight to Las Vegas on Thursday.

The 9-year-old boy had somehow evaded security at the St. Paul Internaitonal Airport in Minneapolis, and boarded a Delta Airlines flight to Las Vegas without his own boarding pass, putting a spotlight on the airport's lax security. 

"The story has a good ending because at least the flight crew took the appropriate actions and the child was returned safely," Pat Hogan, a Minneapolis airport spokesman, told the media "Obviously the concern is how the child was able to go through the security screening process and board an airplane in the first place."

The boy was caught because the airplane crew grew suspicious of him. They still could not say what those suspicions were. 

The 9-year-old is from Minneapolis and arrived to the airport via the light rail train that connects to downtown. As seen from video footage, he took a bag from the luggage carousel before proceeding to one of the restaurant near the security checkpoints. 

"He ordered lunch and ate it and then he told the wait staff that he had to use the restroom," said Hogan. "So he left the bag there, left the restaurant and never came back to pay."

The bag was subsequently returned to its owner. 

The incident is still under investigation, and it is still unclear why the 9-year-old boy was bent on heading to Las Vegas.  

This is not the first time that children have evaded airport security and ended up sneaking onto airplanes. Last year, a boy had snuck onto a plane bound for ROme, managing to get on despite not having a ticket.