Is it possible to delete a pull-request on BitBucket?

I cannot find an option to delete a PR on BitBucket. Am I overlooking something or it's really not possible?

You can decline a pull request which has the same result -- stopping / removing the PR.

As per the link jonrsharpe mentioned, to the right of the merge button there are 3 dots. Under that menu you should have a delete option if you have permission to delete.

This is available only for BitBucket Server, not on BitBucket.org. In BitBucket.org there is no option to delete the PR.