A manhunt is underway after a shooting at a large techno rave in Aarau, Switzerland, early Sunday morning resulted in one death and five injuries, according to police. The incident occurred at the Schachen horse racing track, which had drawn an estimated 3,500 attendees.

Authorities have not yet released details regarding possible motives or the exact circumstances surrounding the violent event. The Aargau Cantonal Police confirmed the ongoing investigation and the search for the perpetrator.

Police identified the deceased as a 22-year-old woman who died at the scene. The injured victims, four men and one woman aged between 24 and 27, were hospitalized with injuries varying from minor to severe. All victims are reportedly residents of Switzerland.

The shooting took place between approximately 2:30 a.m. and 3 a.m. local time. In response to the violence, police have cordoned off the horse racing track, as well as an adjacent swimming pool and sports field, launching a major operation to secure the area and apprehend the suspect. Residents have been advised to avoid the vicinity.

Details about the suspect's identity or description have not been released by law enforcement at this time. The investigation is active, and police are appealing for information from the public.

This incident marks a significant event for the typically peaceful region of northern Switzerland, raising concerns about safety at large public gatherings. Officials are working to provide updates as the investigation progresses.

Further details are expected to be released as the police operation continues. The community awaits answers regarding the motive and the identity of the person responsible for the deadly shooting.

Law enforcement agencies are coordinating efforts to ensure public safety and bring the suspect to justice. The full scope of the investigation and its potential impact on future events are yet to be determined.