Dutch police said on Saturday that several people had died in an incident when a truck crashed into a street party in the southern Dutch city of Nieuw Beijerland.
Police, who did not give specific figures for the victims, said they were investigating the incident, which happened about 30 kilometers south of Rotterdam.
Police spokeswoman Elianne Mastwijk said more than two people were killed, but said the exact number of victims was not yet known.
At least three people died and the truck driver, who was not injured, was arrested and taken into custody.