diff --git a/Tests/images/multiple_comments.gif b/Tests/images/multiple_comments.gif
new file mode 100644
index 000000000..88b2af800
Binary files /dev/null and b/Tests/images/multiple_comments.gif differ
diff --git a/Tests/test_file_gif.py b/Tests/test_file_gif.py
index 8f91177eb..c2cf5e464 100644
--- a/Tests/test_file_gif.py
+++ b/Tests/test_file_gif.py
@@ -831,6 +831,12 @@ def test_zero_comment_subblocks():
         assert_image_equal_tofile(im, TEST_GIF)
 
 
+def test_read_multiple_comment_blocks():
+    with Image.open("Tests/images/multiple_comments.gif") as im:
+        # Multiple comment blocks in a frame are separated not concatenated
+        assert im.info["comment"] == b"Test comment 1\nTest comment 2"
+
+
 def test_version(tmp_path):
     out = str(tmp_path / "temp.gif")
 
diff --git a/src/PIL/GifImagePlugin.py b/src/PIL/GifImagePlugin.py
index 8b03680a8..403f24215 100644
--- a/src/PIL/GifImagePlugin.py
+++ b/src/PIL/GifImagePlugin.py
@@ -228,12 +228,18 @@ class GifImageFile(ImageFile.ImageFile):
                     #
                     # comment extension
                     #
+                    comment = b""
+
+                    # Collect one comment block
                     while block:
-                        if "comment" in info:
-                            info["comment"] += block
-                        else:
-                            info["comment"] = block
+                        comment += block
                         block = self.data()
+
+                    if "comment" in info:
+                        # If multiple comment blocks in frame, separate with \n
+                        info["comment"] += b"\n" + comment
+                    else:
+                        info["comment"] = comment
                     s = None
                     continue
                 elif s[0] == 255: