Five people were injured, including two Americans, in a "serious" stabbing attack that occurred in broad daylight in Amsterdam's city center on Thursday, police said. The suspected assailant is in custody and a motive remains under investigation into what authorities are considering might have been a random attack, police said.

Dutch police are searching for a motive after five people, including two Americans, were stabbed in a busy shopping area of Amsterdam on Thursday afternoon.

A knife-wielding assailant in Amsterdam seriously wounded five people — including two from the United States, one from Belgium and one from Poland — in a stabbing attack Thursday on a busy shopping street,