Authorities have closed part of Amsterdam's Schiphol Airport after workers unearthed a suspected World War II bomb near its main terminal building.
An airport spokeswoman said Terminal C had been closed to arriving and departing flights.
She said: "This will have a big impact. We can park planes somewhere else to some extent, but at some point it will lead to cancellations or delays."
Military bomb disposal experts have been called in to check the suspected bomb, which was uncovered on Wednesday morning, and to decide what to do with it.
Schiphol airport, which is just outside of Amsterdam, is one of Europe's busiest airports.