MINNEAPOLIS — A 9-year-old boy who evaded airport security and stowed away on a flight from Minneapolis to Las Vegas has also stolen a car and sneaked into a water park, and he is known to child protection investigators, according to a confidential county government memo.

In the email obtained by the Star Tribune, Janine Moore, area director of the Hennepin County Human Services and Public Health Department, said child protection staffers have conducted four assessments of the boy’s family since December and that he is a “challenging” child.

“The reports have been inconsistent and there have been no injuries to the child; however, there is a pattern of behavior,” she wrote in the email to county administrators and commissioners marked “private data.”

Moore said she couldn’t comment when reached by The Associated Press on Tuesday. “That information went out without my authorization, so there’s nothing more I can share with you about that memo,” she said.

Hennepin County spokeswoman Carolyn Marinan said the memo is considered private under state law. She said she couldn’t disclose any other details about the county’s involvement except to say the boy is safe.