Grafana producing multiple alerts in scaled Kubernetes installation

Dear community,

I am running Grafana Enterprise version 9.0.5 in an Azure Kubernetes cluster with MySQL as the DB layer. The deployment is scaled with a factor 3, so there are 3 parallel pods running a Grafana instance. When generating alerts in Grafana, the alerts are duplicated and 3 parallel alerts are generated for the same incident. It looks like every Grafana pod is generating the same alert and this is disturbing alert handling. Anybody knows how this issue can be resolved and we can generate single alerts for single incidents, even when Grafana is scaled up in K8S?
Many thanks for your help.