A Pacific National Exhibition employee – that’s like the state fair they have in Vancouver, which is in Canada — was hospitalized Thursday night after buying and drinking a bottle of water at the fair tainted with what is thought to be ammonium chloride.

The Vancouver Sun reports that just after 11 p.m. Thursday, the PNE employee experienced dizziness and muscle weakness and was taken to hospital 30 minutes after drinking a bottle of water from Hunky Bill’s concession inside the fair, Vancouver Police spokeswoman Jana McGuinness said in a press release.

Upon later inspection, it was apparent that the bottle of Dasani water contained small holes where a syringe had apparently been inserted and the substance injected in what PNE spokeswoman Laura Ballance called a single isolated incident.

The Vancouver Police Department is investigating the incident and, according to Vancouver Coastal Health spokeswoman Anna Marie D’Angelo, there have been no other reports of similar illnesses to Vancouver Coastal Health at this time.