CHARLOTTESVILLE, Va. (WVIR) - A major investigation is underway to figure out what killed dozens of fish in a Charlottesville creek. The Department of Environmental Quality is working with the city to figure out what happened, why it happened, and what steps are needed to keep the water safe.

At this point, environmental investigators have at least one suspect in the fish kill. Biologists and other experts from the city, the University of Virginia, and the state are all working together to figure out where this problem started.

The city notified people of the dead fish reported at Meadowcreek Gardens Park Thursday evening, urging people to stay out of the water.

Thursday’s rain washed away those fish, but a field crew used samples from the banks of the creek to help determine where fish started to die, and what might have caused it.

“Right now, everything is a potential it’s still under investigation. All I can say is that the potential source is a reported demolition site on the UVA campus,” said Tara Wyrick, water monitoring and assessment manager for Valley Regional Office of Department of Environmental Quality.

The investigators didn't elaborate on what demolition site that may be. Crews are expected in the area again starting next week, to see if they can confirm that potential source at UVA.

For now, the city and environmental workers with the state recommend people avoid any contact with the water in the area of Meadowcreek Park out of an abundance of caution.