How do kill a replication Process

I would like to know how to kill a specific replication process on a NAS. While performing a replication process the receiving NAS stopped working do to a massive disk failure. now there is a process on the sending NAS that is replicating to nothing . How do I kill it ? It's been going for 4 days now and it's making other replication processes fail.

go to replication task manager and click on the orange square (under action)
this will stop the replication process

Thanks ... I should have known this.