Slideshow

Netherlands Tram Shooting

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Netherlands Tram Shooting

Emergency services attend the scene of a shooting in Utrecht, Netherlands, Monday March 18, 2019. Police in the central Dutch city of Utrecht say on Twitter that "multiple" people have been injured as a result of a shooting in a tram in a residential neighborhood. (Martijn van der Zande via AP)

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Netherlands Tram Shooting

In this image taken from the Twitter page of Lilian Bruigom, emergency services attend the scene of a shooting in Utrecht, Netherlands, Monday March 18, 2019. Police in the central Dutch city of Utrecht say on Twitter that "multiple" people have been injured as a result of a shooting in a tram in a residential neighborhood. (Lilian Bruigom via AP)

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Netherlands Tram Shooting

Ambulances are seen next to a tram after a shooting in Utrecht, Netherlands, Monday, March 18, 2019. Police in the central Dutch city of Utrecht say on Twitter that "multiple" people have been injured as a result of a shooting in a tram in a residential neighborhood. (AP Photo/Peter Dejong)

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Netherlands Tram Shooting

Rescue workers install a screen on the spot where a human shape was seen under a white blanket following a shooting in Utrecht, Netherlands, Monday, March 18, 2019. Police in the central Dutch city of Utrecht say on Twitter that "multiple" people have been injured as a result of a shooting in a tram in a residential neighborhood. (AP Photo/Peter Dejong)