diff --git a/src/strands/models/bedrock.py b/src/strands/models/bedrock.py
index 8e1558ca7..871b0db47 100644
--- a/src/strands/models/bedrock.py
+++ b/src/strands/models/bedrock.py
@@ -414,9 +414,13 @@ def _format_request_message_content(self, content: ContentBlock) -> dict[str, An
             if "format" in document:
                 result["format"] = document["format"]
 
-            # Handle source
+            # Handle source (supports both bytes and s3Location)
             if "source" in document:
-                result["source"] = {"bytes": document["source"]["bytes"]}
+                source = document["source"]
+                if "bytes" in source:
+                    result["source"] = {"bytes": source["bytes"]}
+                elif "s3Location" in source:
+                    result["source"] = {"s3Location": source["s3Location"]}
 
             # Handle optional fields
             if "citations" in document and document["citations"] is not None:
@@ -437,11 +441,12 @@ def _format_request_message_content(self, content: ContentBlock) -> dict[str, An
         if "image" in content:
             image = content["image"]
             source = image["source"]
-            formatted_source = {}
+            image_source: dict[str, Any] = {}
             if "bytes" in source:
-                formatted_source = {"bytes": source["bytes"]}
-            result = {"format": image["format"], "source": formatted_source}
-            return {"image": result}
+                image_source = {"bytes": source["bytes"]}
+            elif "s3Location" in source:
+                image_source = {"s3Location": source["s3Location"]}
+            return {"image": {"format": image["format"], "source": image_source}}
 
         # https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_ReasoningContentBlock.html
         if "reasoningContent" in content:
@@ -502,11 +507,12 @@ def _format_request_message_content(self, content: ContentBlock) -> dict[str, An
         if "video" in content:
             video = content["video"]
             source = video["source"]
-            formatted_source = {}
+            video_source: dict[str, Any] = {}
             if "bytes" in source:
-                formatted_source = {"bytes": source["bytes"]}
-            result = {"format": video["format"], "source": formatted_source}
-            return {"video": result}
+                video_source = {"bytes": source["bytes"]}
+            elif "s3Location" in source:
+                video_source = {"s3Location": source["s3Location"]}
+            return {"video": {"format": video["format"], "source": video_source}}
 
         # https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_CitationsContentBlock.html
         if "citationsContent" in content:
diff --git a/src/strands/types/media.py b/src/strands/types/media.py
index 69cd60cf3..d2ccb0bcb 100644
--- a/src/strands/types/media.py
+++ b/src/strands/types/media.py
@@ -11,18 +11,33 @@
 
 from .citations import CitationsConfig
 
+
+class S3Location(TypedDict, total=False):
+    """S3 location for media content.
+
+    Attributes:
+        uri: The S3 URI of the content.
+        bucketOwner: The account ID of the bucket owner.
+    """
+
+    uri: str
+    bucketOwner: str
+
+
 DocumentFormat = Literal["pdf", "csv", "doc", "docx", "xls", "xlsx", "html", "txt", "md"]
 """Supported document formats."""
 
 
-class DocumentSource(TypedDict):
+class DocumentSource(TypedDict, total=False):
     """Contains the content of a document.
 
     Attributes:
         bytes: The binary content of the document.
+        s3Location: The S3 location of the document.
     """
 
     bytes: bytes
+    s3Location: S3Location
 
 
 class DocumentContent(TypedDict, total=False):
@@ -45,14 +60,16 @@ class DocumentContent(TypedDict, total=False):
 """Supported image formats."""
 
 
-class ImageSource(TypedDict):
+class ImageSource(TypedDict, total=False):
     """Contains the content of an image.
 
     Attributes:
         bytes: The binary content of the image.
+        s3Location: The S3 location of the image.
     """
 
     bytes: bytes
+    s3Location: S3Location
 
 
 class ImageContent(TypedDict):
@@ -71,14 +88,16 @@ class ImageContent(TypedDict):
 """Supported video formats."""
 
 
-class VideoSource(TypedDict):
+class VideoSource(TypedDict, total=False):
     """Contains the content of a video.
 
     Attributes:
         bytes: The binary content of the video.
+        s3Location: The S3 location of the video.
     """
 
     bytes: bytes
+    s3Location: S3Location
 
 
 class VideoContent(TypedDict):
diff --git a/tests/strands/models/test_bedrock.py b/tests/strands/models/test_bedrock.py
index 7697c5e03..9de08c4ea 100644
--- a/tests/strands/models/test_bedrock.py
+++ b/tests/strands/models/test_bedrock.py
@@ -2240,3 +2240,76 @@ async def test_format_request_with_guardrail_latest_message(model):
     # Latest user message image should also be wrapped
     assert "guardContent" in formatted_messages[2]["content"][1]
     assert formatted_messages[2]["content"][1]["guardContent"]["image"]["format"] == "png"
+
+
+def test_format_request_s3_location_document_source(model, model_id):
+    """Test that s3Location source is supported for documents when bytes is not present."""
+    messages = [
+        {
+            "role": "user",
+            "content": [
+                {
+                    "document": {
+                        "name": "test.pdf",
+                        "format": "pdf",
+                        "source": {"s3Location": {"uri": "s3://bucket/key.pdf"}},
+                    }
+                },
+            ],
+        }
+    ]
+
+    formatted_request = model._format_request(messages)
+
+    document_block = formatted_request["messages"][0]["content"][0]["document"]
+    expected = {"name": "test.pdf", "format": "pdf", "source": {"s3Location": {"uri": "s3://bucket/key.pdf"}}}
+    assert document_block == expected
+
+
+def test_format_request_s3_location_image_source(model, model_id):
+    """Test that s3Location source is supported for images when bytes is not present."""
+    messages = [
+        {
+            "role": "user",
+            "content": [
+                {
+                    "image": {
+                        "format": "png",
+                        "source": {"s3Location": {"uri": "s3://bucket/image.png"}},
+                    }
+                },
+            ],
+        }
+    ]
+
+    formatted_request = model._format_request(messages)
+
+    image_block = formatted_request["messages"][0]["content"][0]["image"]
+    expected = {"format": "png", "source": {"s3Location": {"uri": "s3://bucket/image.png"}}}
+    assert image_block == expected
+
+
+def test_format_request_s3_location_video_source(model, model_id):
+    """Test that s3Location source is supported for videos when bytes is not present."""
+    messages = [
+        {
+            "role": "user",
+            "content": [
+                {
+                    "video": {
+                        "format": "mp4",
+                        "source": {"s3Location": {"uri": "s3://bucket/video.mp4", "bucketOwner": "123456789012"}},
+                    }
+                },
+            ],
+        }
+    ]
+
+    formatted_request = model._format_request(messages)
+
+    video_block = formatted_request["messages"][0]["content"][0]["video"]
+    expected = {
+        "format": "mp4",
+        "source": {"s3Location": {"uri": "s3://bucket/video.mp4", "bucketOwner": "123456789012"}},
+    }
+    assert video_block == expected
diff --git a/tests/strands/tools/mcp/test_mcp_client_tool_provider.py b/tests/strands/tools/mcp/test_mcp_client_tool_provider.py
index 9cb90167d..af56cf367 100644
--- a/tests/strands/tools/mcp/test_mcp_client_tool_provider.py
+++ b/tests/strands/tools/mcp/test_mcp_client_tool_provider.py
@@ -824,3 +824,56 @@ def short_names_only(tool) -> bool:
         # Should only include short tool (name length <= 10)
         assert len(result) == 1
         assert result[0] is mock_agent_tool1
+
+
+def test_is_session_active_with_close_future_done():
+    """Test that _is_session_active returns False when close_future is done."""
+    from unittest.mock import Mock
+    
+    client = MCPClient(transport_callable=lambda: Mock())
+    
+    # Mock background thread as alive
+    client._background_thread = Mock()
+    client._background_thread.is_alive.return_value = True
+    
+    # Mock close_future as done
+    client._close_future = Mock()
+    client._close_future.done.return_value = True
+    
+    # Should return False because close_future is done
+    assert client._is_session_active() is False
+
+
+def test_is_session_active_with_close_future_not_done():
+    """Test that _is_session_active returns True when close_future is not done."""
+    from unittest.mock import Mock
+    
+    client = MCPClient(transport_callable=lambda: Mock())
+    
+    # Mock background thread as alive
+    client._background_thread = Mock()
+    client._background_thread.is_alive.return_value = True
+    
+    # Mock close_future as not done
+    client._close_future = Mock()
+    client._close_future.done.return_value = False
+    
+    # Should return True
+    assert client._is_session_active() is True
+
+
+def test_is_session_active_with_none_close_future():
+    """Test that _is_session_active returns True when close_future is None."""
+    from unittest.mock import Mock
+    
+    client = MCPClient(transport_callable=lambda: Mock())
+    
+    # Mock background thread as alive
+    client._background_thread = Mock()
+    client._background_thread.is_alive.return_value = True
+    
+    # close_future is None
+    client._close_future = None
+    
+    # Should return True
+    assert client._is_session_active() is True