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 in the Netherlands say a knife-wielding assailant has seriously wounded five people in a stabbing attack in Amsterdam before he was taken into custody.

"Among the victims are a 67- year-old woman and a 69- year-old man, both American nationals; a 26- year-old man from Poland; a 73- year-old woman from Belgium; and a 19- year-old woman from Amsterdam,