Just had an alert circulated at work:
Date: 31/01/2011
Time: 15:25hrs
We have received reports of a fire at the Cross Rail Building in Moorgate, EC4. Moorgate has been closed off to all traffic on the junctions of Ropemaker St and London Wall.
More info here:
http://londonist.com/2011/01/moorgate-fire-station-closed.php