It happened Saturday night in the village of Nieuw-Beijerlanda south of Rotterdam, when police say a large truck left a small rural road and drove down the embankment and plowed into the village gathering. The exact cause of the crash is now under investigation, but police spokeswoman Mirjam Boers said the truck driver was a 46-year-old Spaniard and was not under the influence of alcohol at the time of the crash. “At this time, we are keeping all scenarios open regarding the events,” police said in a statement. Pictures of the scene showed acorns hanging from trees and chairs scattered around small tables, and police worked into the night around the truck before a crane and tow truck pulled it back onto the road. Local mayor Charlie Aptroot visited the scene on Saturday night. “My condolences go out to the victims, their families, eyewitnesses and first responders,” he said in a statement. He added that he had spoken to many of the people on stage and expressed his “appreciation for the way people are there for each other”.