A 12-year-old boy made his way through security and onto an L.A.-bound flight without a ticket or boarding pass at Heathrow Airport, raising security concerns for the major international hub.

Unidentified and unaccompanied, the child was only halted when cabin crew attempted to direct him to his seat on the aircraft. When they discovered he had no flight documents, all passengers were asked to disembark for an additional security check.