The fire appliances and traffic had disappeared by 12:50 so i guess it is not too serious. I suppose re-opening depends on whether any of the services (electricity, water, comms) have been cut.
I can confirm i bought potato salad and cheesecake from the Co-Op at 8pm and everything tickety boo .
Great fan of the place - really only two supermarket chains needed in the world - Waitrose for little treats and Co-op for life's greaseproof/ washing up liquid and baked bean needs
A very good evening
Nigel