Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 5901)
+++ /CKEditor/trunk/CHANGES.html	(revision 5902)
@@ -46,4 +46,5 @@
 	<ul>
 		<li><a href="http://dev.ckeditor.com/ticket/5237">#5237</a> : English text in dialogs' title was flipped when using RTL language (office2003 and v2 skins).</li>
+		<li><a href="http://dev.ckeditor.com/ticket/6289">#6289</a> : Deleting nested table removed the parent cell.</li>
 	</ul>
 	<h3>
Index: /CKEditor/trunk/_source/plugins/tabletools/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/tabletools/plugin.js	(revision 5901)
+++ /CKEditor/trunk/_source/plugins/tabletools/plugin.js	(revision 5902)
@@ -715,7 +715,7 @@
 					exec : function( editor )
 					{
-						var selection = editor.getSelection();
-						var startElement = selection && selection.getStartElement();
-						var table = startElement && startElement.getAscendant( 'table', true );
+						var selection = editor.getSelection(),
+							startElement = selection && selection.getStartElement(),
+							table = startElement && startElement.getAscendant( 'table', 1 );
 
 						if ( !table )
@@ -728,7 +728,7 @@
 						selection.selectRanges( [ range ] );
 
-						// If the table's parent has only one child, remove it,except body,as well.( #5416 )
+						// If the table's parent has only one child remove it as well (unless it's the body or a table cell) (#5416, #6289)
 						var parent = table.getParent();
-						if ( parent.getChildCount() == 1 && parent.getName() != 'body' )
+						if ( parent.getChildCount() == 1 && !parent.is( 'body', 'td', 'th' ) )
 							parent.remove();
 						else