Four people were seriously injured in an accidental blast during a carnival in Paris suburbs Saturday, local media reported.

They were among a total of at least 15 people reported to be injured after the ignition of a fire caused an accidental explosion in Villepinte, a town in Seine-Saint-Denis and to the northeast of Paris.

Video clips from witnesses showed that a blast rocked the ground, prompting children at the scene to run and scream.

Thousands of children were present at the event, according to police.

source: Xinhua