Justine Greening concerned by airport security breach
25 July 2012 Last updated at 10:17 BST
An eleven-year-old boy has succeeded in boarding a flight for Rome from Manchester airport without a ticket, passport or boarding pass.
He was discovered while the Jet-Two plane was in mid-air, after passengers became suspicious.
A spokesman for the airport said an investigation had begun and some staff had been suspended.
The Transport Secretary, Justine Greening, described the incident as incredibly concerning.