Faulty Fireworks In Bremen

A group of friends witness massive mortar shell fireworks explode while still on the ground during a New Years celebration.
Info From Licensor: "Just arrived in the new 2016, surprised me and my friends this incredibly spectacular fireworks on the domestic road junction. After the second firing, we pulled out our Smartphone and filmed these not entirely harmless giant explosion - from a safe distance."
Occurrence Date: January 1, 2016
Location: Bremen, Germany