The truck careens over a line of cars.
Then it becomes unbalanced — and slams into a crowd of spectators.
A video posted to YouTube purports to show the disaster unfolding in Haaksbergen in the Netherlands on Sunday afternoon, and horrified screams of the crowd are audible in the video.
Belgian news site RTL Sports reported that two adults and one child had been killed in the crash and at least 15 people had been injured, five of them critically.
(Content warning: Disturbing images)
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