Alarming images of dead fish and eel have been posted to social media.
Residents of Tagabe Area near the Tusker Brewery are concerned that the Tusker drainage pool might be seeping into the river causing wildlife to die.
The area is fully inhabited and is a industrial zone as well.
The area has been highlighted before as concerns started to surface about the beer waste from Tusker.
Resident have been constantly complaining about the smell from the beer waste in a nearby pond.
The Environmental Unit and Shefa Provincial Government have visited the area a while back to asses the situations but have not yet taken any measures to address the issues.
The area surrounding the river host a tourism site.
Though not sure if the waste from Tusker is contributing to killing wild life, residents are asking authorities to move quickly to address the matter.