The man was holding a firework in his hand when it exploded, causing fatal injuries.
The prefecture said the incident was unrelated to unrest in Strasbourg.
French police were forced to intervene a number of times over New Year’s Eve when cars were set on fire across the city. Some officers were injured in the process.
Fire fighters and police officers have been targeted in the area recently, with the acts culminating on New Year’s Eve when masked youths threw fireworks at officers.
