An official at Schiphol said the plane's crew subdued a man in the rear of the aircraft, and customs police officers with drawn weapons arrested the suspect. The official could not be identified because he was not authorized to speak to the media.
No bomb was found aboard the plane, Justice Ministry spokesman Wim Kom told The Associated Press
In Madrid, an Iberia spokeswoman said 156 passengers were on Flight 3251 when, soon after takeoff, a passenger said he was going to explode something if the plane did not return to Amsterdam.
The plane returned and the passengers were evacuated on emergency ramps.
The man apparently did not resist when police arrested him, and officers began searching the plane. There were no details on his identity. The Iberia spokeswoman spoke on condition of anonymity, saying it was company policy, reports AP.