diff --git a/lib_com/ivas_error.h b/lib_com/ivas_error.h
index a2f893ed78edd4d5055503e9eb720de1a8d323f4..c6d18125e296bfbb0310733888cb81a336bc98d5 100644
--- a/lib_com/ivas_error.h
+++ b/lib_com/ivas_error.h
@@ -134,6 +134,9 @@ typedef enum
     IVAS_ERR_BITSTREAM_READER_INVALID_FORMAT,
     IVAS_ERR_NO_FILE_OPEN,
     IVAS_ERR_SAMPLING_RATE_UNKNOWN,
+#ifdef FIX_1370_EXTERNAL_ORIENTATION_CHECK
+    IVAS_ERR_EXTERNAL_ORIENTATION_INVALID_FORMAT,
+#endif
 
     /*----------------------------------------*
      *    renderer (lib_rend only)            *
@@ -271,6 +274,10 @@ static inline const char *ivas_error_to_string( ivas_error error_code )
             return "Invalid input format";
         case IVAS_ERR_INVALID_INDEX:
             return "Invalid index";
+#ifdef FIX_1370_EXTERNAL_ORIENTATION_CHECK
+        case IVAS_ERR_EXTERNAL_ORIENTATION_INVALID_FORMAT:
+            return "Euler angles were detected in the input but only Quaternions are supported";
+#endif
         default:
             break;
     }
diff --git a/lib_com/options.h b/lib_com/options.h
index f2d58b90061044e84f65334570bb2d1a3839d7fb..45ca705378ba7ac1916c7255687aad51aa0a5a6c 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -167,6 +167,7 @@
 #define FIX_1369_HQ_LR_OVERFLOW                         /* FhG: fix BASOP overflow in hq_lr_enc(), brings floating-point code inline with FX */
 #define FIX_1376_MISSING_ISM_METADATA                   /* FhG: IVAS_rend: throw error if there exists an ISM input without a corresponding metadata file path */
 #define FIX_1330_JBM_MEMORY                             /* VA: issue 1330: memory savings in the JBM decoder */
+#define FIX_1370_EXTERNAL_ORIENTATION_CHECK             /* Nokia: add sanity check for Euler angles for external orientations */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_util/rotation_file_reader.c b/lib_util/rotation_file_reader.c
index 024b0837374c9ccbefd5519817ba00dd7e4981ba..6c62290b002e4c9a6aeb9d268c10a6aeb369b0fb 100644
--- a/lib_util/rotation_file_reader.c
+++ b/lib_util/rotation_file_reader.c
@@ -174,6 +174,14 @@ ivas_error ExternalOrientationFileReading(
     }
 
     ( externalOrientationReader->frameCounter )++;
+#ifdef FIX_1370_EXTERNAL_ORIENTATION_CHECK
+
+    /* Only Quaternion orientations are supported, raise an error if Euler angles are detected in the input */
+    if ( w == -3.0f )
+    {
+        return IVAS_ERR_EXTERNAL_ORIENTATION_INVALID_FORMAT;
+    }
+#endif
 
     pQuaternion->w = w;
     pQuaternion->x = x;