Association abort does not close TCP connection

Question

Using pydicom store SCP. The after sending the files, PACS does not release the association. Hence the association is aborted due to timeout

E: Network timeout reached
I: Aborting Association

And then I ran ss -ant command , and I see the TCP connection is in ESTAB state. For every association, a new TCP connection is created and it is not closed even though on_assoc_aborted() is triggered

How do I make sure the connection is closed after the association is aborted as I have 70+ connections in ESTAB state even though no associations are open and its been a few hours they are in ESTAB state