Five people have been stabbed at a popular tourist hotspot, Dam Square, in central Amsterdam.
One suspect has been arrested in connection with the incident that took place on Sint Nicolaasstraat on Tuesday afternoon, police confirmed.
A helicopter has been spotted at the scene, and the area remains blocked off as authorities deal with the situation.
Police said on social media: "At Sint Nicolaasstraat near the Dam, there has been a stabbing incident with several injured people.
"We are present at the Dam and have blocked the area. More info follows."
They added that at present, a motive is "currently still unclear, but part of our investigation".
A trauma helicopter called to the scene has landed on the square and multiple ambulances have also responded.
"A motive is currently still unclear, but part of our investigation," the police said in a post on social media.
Local media reported that a city council meeting involving Amsterdam mayor Femke Halsema was interrupted because of the stabbing.
No further details were immediately available.

Politics Editor