According to the Reuters news agency, Dutch military police say security forces have now surrounded the plane with the passengers still on board.Police have confirmed that they believe this is a hostage situation. But Spanish airline Vueling, which reportedly owns the plane, has denied reports that it has been hijacked.

And according to this tweet: Schiphol Incidenten '@112SchipholPassenger on board Vueling 8366 report to Dutch media that there is NO hijack or hostage in progress.