BERLIN (AP) — German authorities say one person has been killed and three others injured following a shooting late Friday outside a Berlin music venue.

Police in the German capital said Saturday that unknown people opened fire outside the Tempodrom, located near Potsdamer Platz in the center of the city.

The suspects were able to flee.

It was unclear whether the shooting was linked to the event being staged inside the venue Friday night, a Turkish comedy night.

Berlin has one of the highest number of killings per person among European capitals.