diff --git a/docs/filesystem.md b/docs/filesystem.md
index a4e279500..307f4852b 100644
--- a/docs/filesystem.md
+++ b/docs/filesystem.md
@@ -399,8 +399,10 @@ operation sends one request (one per page for the iterators and
 described below, send several, and `generate_presigned_url()` signs a URL locally
 without a request. The requests are sent with the retry policy. An operation raises
 `FileNotFoundError` for a missing bucket or multipart upload, or for a missing object or
-version that it reads, and caches nothing. Requests sent through `fs.core` do not
-invalidate the filesystem's cache: call
+version that it reads, and caches nothing. `copy_object()` and `upload_part_copy()` with
+a source version that is a delete marker raise `OSError` with `EINVAL`, while the
+filesystem's `cp_file()` raises `FileNotFoundError` for it, as for a missing file.
+Requests sent through `fs.core` do not invalidate the filesystem's cache: call
 `fs.invalidate_cache()` after a change, or make it through the filesystem.
 
 ```python
diff --git a/pyathena/filesystem/s3_core.py b/pyathena/filesystem/s3_core.py
index 84b98d94b..802326eea 100644
--- a/pyathena/filesystem/s3_core.py
+++ b/pyathena/filesystem/s3_core.py
@@ -501,7 +501,9 @@ class S3Core:
     :class:`~pyathena.filesystem.s3_errors.S3ClientError`): a missing bucket
     or multipart upload, or a missing object or version that an operation
     reads, raises ``FileNotFoundError``, and a denied request
-    ``PermissionError``.
+    ``PermissionError``. :meth:`copy_object` and :meth:`upload_part_copy`
+    with a source version that is a delete marker raise ``OSError`` with
+    ``EINVAL``.
     As in S3, deleting a missing key is not an error. Nothing is cached.
 
     Example:
@@ -1019,6 +1021,10 @@ def upload_part_copy(
         Raises:
             ValueError: If the upload has no bucket, key, or upload ID, or the
                 source has no key.
+            FileNotFoundError: If the upload, or the source object or version,
+                does not exist.
+            OSError: With ``EINVAL`` for an invalid request, such as a source
+                version that is a delete marker.
         """
         request = self._multipart_upload_request(upload)
         if not source.key:
@@ -1176,6 +1182,10 @@ def copy_object(self, source: S3Path, destination: S3Path, **params) -> None:
         Raises:
             ValueError: If the source or the destination has no key, or the
                 destination has a version ID, which a write cannot replace.
+            FileNotFoundError: If a bucket, or the source object or version,
+                does not exist.
+            OSError: With ``EINVAL`` for an invalid request, such as a source
+                version that is a delete marker.
         """
         if not source.key:
             raise ValueError(f"The source has no key: {source.uri}.")