If I have CockroachDb replicas in three Kubernetes Clusters in different regions and one of the clusters loses connection to the others, will a app in that cluster still be able to read from the CockroachDb in the same cluster?

For example will the App in Region 1 still be able to read data from CockroachDb, even if it has lost connection to Region 2 and Region 3?
Example Setup

I have tried to find the answer online.