Overview
- About 600 people left the Neunbar café and the adjoining Bürgergesellschaft hall after multiple emergency calls around 22:45.
- Paramedics treated six people for minor symptoms on site, with streets closed and assembly points established.
- Firefighters and police reported no evidence of a gas leak or the use of pepper spray based on on-scene measurements.
- A briefly elevated reading was attributed to a fire service ventilation device, according to authorities.
- After checks, guests returned to the event venue, while the café remained closed pending further findings.