In this image made from video, Dutch police officers stand near the scene of a stabbing attack near the central daily station in Amsterdam, the Netherlands, Friday Aug. 31, 2018. The man, named as Jawed S, has a German residency permit.
Dutch police were also in close contact with their German counterparts in regards to the suspect's background, he added.
The victims were identified only as American citizens by the US ambassador to the Netherlands; police said they were recovering in a hospital with injuries that were considered serious but not life-threatening.
Amsterdam City Hall said the suspect was being held in hospital under police guard and would briefly appear in court Monday behind closed doors.
Police say they are still trying to establish a reason for the attack, including whether it was motivated by extremism.More news: Indian Rupee slumps to record low of 71 per dollar
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The motive for the stabbing was not immediately known. "We will assist as appropriate, with our main priority as always being the safety and well-being of United States citizens in the country". A while later he saw another man lying on the ground nearby, he said. After all, you are at Amsterdam Central Station.
Wilders on Thursday said he was nixing plans to stage the competition to "avoid the risk of making people victims of Islamist violence".
Two Americans who were stabbed Friday night at a train station in Amsterdam were targeted by an Afghan citizen who had a "terrorist motive", officials say.
The Netherlands has so far been spared from the slew of terror attacks which have rocked its closest European neighbors in the past few years. The National Coordinator for Counter-terrorism and Security Policy said the national threat level in the Netherlands was unchanged at "substantial", or one notch below the highest.
The stabbings occurred shortly after noon (1000 GMT; 6 a.m. EDT) at Central Station in downtown Amsterdam when a man walked into a group of people.