Several victims have been reported following a shooting in the early morning at an event in northern Switzerland, local police said on Sunday.
Cantonal police in Aargau said a large-scale operation was underway and they appealed to the public for any film or pictures of the incident, which the mass-market Blick tabloid said occurred at a rave party.
The newspaper published video footage, taken from an elevated position, it said had come from a reader showing a night-time street scene with the sound of several shots being fired.
No further details were immediately available.
This is a developing story
