Nineteen people were injured Friday night at the fireworks show at the fair in Düsseldorf. Four of them are seriously injured. Among the victims is at least one child, a police spokesperson told the Rheinische Post.
According to the fire department, fireworks may have flown the wrong way and at least one rocket exploded just above the audience, reports broadcaster WDR.
An organizer suspects that things went wrong due to a collapsed launch platform. Although the cause of the incident is still under investigation, the police assume it was an accident.
About eighty emergency workers from the fire department and other services came to the scene of the accident. Several injured people had to be taken to the hospital.
The accident happened at the annual Düsseldorfer Rheinkirmes. The fair was ended prematurely on Friday because of the accident.
The organization says it is now considering whether the traditional fireworks should remain part of the event.
This year, a large drone show with a thousand devices was held for the first time, according to the organization the largest in the country.