rewrite rules - 301 Redirect via rewrite_rules_array (not .HTACCESS)

This is rule works so well.

add_action( 'rewrite_rules_array', 'rewrite_rules' );
function rewrite_rules( $rules ) {   
    $newrules = array();
    $newrules[ 'group/(.*)/?$' ] = 'index.php?pagename=test&group=$matches[1]';
    return $newrules + $rules;
}

But now I have 2 URLs.

1. www.example/*kitty*/

2. www.example/*kitty*/*images*/

Now when I visit : www.example/*kitty*/

I want to be redirected to : www.example/*kitty*/*images*/

Important ! Redirected, not Rewritten

How can I do this ?