How to delete PO attachments through REST API

Summary:

Hello,

We are having the requirement that deletion / purging the PO Attachments in Lower environments.

We are trying to do the above through the following REST API but we are unable to delete the same.
/fscmRestApi/resources/11.13.18.05/purchaseOrders/{purchaseOrdersUniqID}/child/attachments/

We are able to delete the AP invoice attachement and Project attachments through other REST API's .

We would like to know the exact REST API to delete/purge the PO attachments.

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Version (include the version you are using, if applicable):

Current Oracle Fusion version is 24B

Code Snippet (add any code snippets that support your topic, if applicable):