Correct syntax to drop a hash partition

Hi folks,

Following the admin guide I have successfully created a HASH type partition.  However I'm struggling with the syntax to now drop my partitions.  My create partition syntax looks like this;

ALTER TABLE "MYSCHEMA"."BSEG" PARTITION BY HASH (GJAHR) PARTITIONS 2

What would the correct syntax be to drop my partitions?  I'm using test data so it's ok if the data is deleted during the drop.

Thanks!