diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6521c38..0255efab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+- Added 'Unauthorized' to the fetch status (#90)
 
 ### Changed
 - On empty query result, show clear message (#86)
diff --git a/cypress/e2e/fetch-status.cy.js b/cypress/e2e/fetch-status.cy.js
index e1b0e451..ca9c8fec 100644
--- a/cypress/e2e/fetch-status.cy.js
+++ b/cypress/e2e/fetch-status.cy.js
@@ -15,10 +15,10 @@ describe("Fetch Status", () => {
 
         // Check if the correct icons appear
         cy.get('[aria-label="Authentication required"]').should("exist");
-        cy.get('[aria-label="Fetch failed"]').should("exist");
+        cy.get('[aria-label="Unauthorized"]').should("exist");
 
         cy.get('[aria-label="No authentication required"]').should("exist");
-        cy.get('[aria-label="Fetch was succesful"]').should("exist");
+        cy.get('[aria-label="Fetch was successful"]').should("exist");
         
 
         // Checking that a non-authorized book is not appearing 
@@ -60,13 +60,36 @@ describe("Fetch Status", () => {
         // Check if the correct icons appear
         cy.get('[aria-label="Authentication required"]').should("exist");
         cy.get('[aria-label="Fetch Failed"]').should("not.exist");
+        cy.get('[aria-label="Unauthorized"]').should("not.exist");
 
         cy.get('[aria-label="No authentication required"]').should("exist");
-        cy.get('[aria-label="Fetch was succesful"]').should("exist");
+        cy.get('[aria-label="Fetch was successful"]').should("exist");
 
         // Checking that you see authorized books
         cy.contains("It Ends With Us");
         cy.contains("Too Late");
     });
 
+    it("Failed to fetch data", () => {
+
+        cy.visit("/");
+
+        // Go immediately to query
+        cy.contains("My favourite musicians").click();  
+        
+        // Check if the good and bad sources appear
+        cy.get('[aria-label="Sources info"]').click();
+        
+        // First fetch should be a success
+        cy.contains("http://localhost:8080/example/favourite-musicians");
+        cy.get('[aria-label="No authentication required"]').should("exist");
+        cy.get('[aria-label="Unauthorized"]').should("not.exist");
+        cy.get('[aria-label="Fetch was successful"]').should("exist");
+
+        // the bad source should fail to fetch
+        cy.contains("http://www.example.com/fetch-failure-but-query-success");
+        cy.get('[aria-label="Fetch failed"]').should("exist");
+
+    });
+
 })
\ No newline at end of file
diff --git a/cypress/e2e/sources-info.cy.js b/cypress/e2e/sources-info.cy.js
index 40a74557..d6122179 100644
--- a/cypress/e2e/sources-info.cy.js
+++ b/cypress/e2e/sources-info.cy.js
@@ -16,7 +16,7 @@ describe("Sources info", () => {
     cy.contains("Finished in:");
     cy.get('[aria-label="Sources info"]').click();
 
-    cy.get('[aria-label="Fetch was succesful"]').should("exist");
+    cy.get('[aria-label="Fetch was successful"]').should("exist");
   });
 
   it("Fetch status on cached source - see https://github.com/SolidLabResearch/generic-data-viewer-react-admin/issues/59", () => {
@@ -26,13 +26,13 @@ describe("Sources info", () => {
     cy.contains("Finished in:");
     cy.get('[aria-label="Sources info"]').click();
 
-    cy.get('[aria-label="Fetch was succesful"]').should("exist");
+    cy.get('[aria-label="Fetch was successful"]').should("exist");
 
     cy.contains("Components and their materials").click();
     cy.contains("Finished in:");
     cy.get('[aria-label="Sources info"]').click();
 
-    cy.get('[aria-label="Fetch was succesful"]').should("exist");
+    cy.get('[aria-label="Fetch was successful"]').should("exist");
     cy.get('[aria-label="Fetch failed"]').should("not.exist");
   });
 
diff --git a/src/components/ActionBar/SourceFetchStatusIcon/SourceFetchStatusIcon.jsx b/src/components/ActionBar/SourceFetchStatusIcon/SourceFetchStatusIcon.jsx
index 6dd13906..f6d8c190 100644
--- a/src/components/ActionBar/SourceFetchStatusIcon/SourceFetchStatusIcon.jsx
+++ b/src/components/ActionBar/SourceFetchStatusIcon/SourceFetchStatusIcon.jsx
@@ -1,5 +1,6 @@
 import CheckIcon from '@mui/icons-material/Check';
 import CancelIcon from "@mui/icons-material/Cancel";
+import RemoveCircleOutlineIcon from '@mui/icons-material/RemoveCircleOutline';
 import { Tooltip } from "@mui/material";
 import PropTypes from "prop-types";
 import { Component } from "react";
@@ -16,14 +17,23 @@ function SourceFetchStatusIcon({ context, source, proxyUrl }) {
   if (context.useProxy) {
     actualSource = `${proxyUrl}${source}`;
   }
-  const status = context.fetchSuccess[actualSource];
-  if (status) {
+  const status = context.fetchStatusNumber[actualSource];
+
+  if (context.fetchSuccess[actualSource]) {
     return (
-      <Tooltip title="Fetch was succesful">
+      <Tooltip title="Fetch was successful">
         <CheckIcon size="small" />
       </Tooltip>
     );
-  } else {
+  }
+  else if (status == 401 || status == 403){
+    return (
+      <Tooltip title="Unauthorized">
+        <RemoveCircleOutlineIcon size="small" />
+      </Tooltip>
+    );
+  }
+  else {
     return (
       <Tooltip title="Fetch failed">
         <CancelIcon size="small" />
diff --git a/src/dataProvider/SparqlDataProvider.js b/src/dataProvider/SparqlDataProvider.js
index 181762eb..e197c4be 100644
--- a/src/dataProvider/SparqlDataProvider.js
+++ b/src/dataProvider/SparqlDataProvider.js
@@ -207,6 +207,7 @@ function generateContext(context) {
 
   if (!context.fetchSuccess) {
     context.fetchSuccess = {};
+    context.fetchStatusNumber = {};
     // avoid faulty fetch status for sources cached in Comunica
     for (const source of context.sources) {
       context.fetchSuccess[source] = true;
@@ -239,6 +240,7 @@ function statusFetch(customFetch, context) {
     try{
       const response = await customFetch(arg); 
       context.fetchSuccess[arg] = response.ok;
+      context.fetchStatusNumber[arg] = response.status;
       return response;
     }
     catch(error){
@@ -246,6 +248,7 @@ function statusFetch(customFetch, context) {
       throw error;
     }
   }
+
   return wrappedFetchFunction;
 }