Police are investigating the circumstances around the death of a man in Kyneton.
Police visited a property in Windridge Way at about 2.30pm on Tuesday, July 2 as part of an investigation.
A 27-year-old Kyneton man was arrested at the address, and shortly after, appeared unwell and became unresponsive.
Police immediately called for medical assistance and performed CPR on the man, however, he was unable to be revived.
At this early stage, police report that it appears the man may have ingested a substance.
As a result, five police officers who attended the scene were taken to hospital as a precaution.
Detectives will investigate the incident with oversight from Professional Standards Command, as per standard practice when a person dies in police custody.