The remaining piece of the Riga Maxima supermarket roof fell in on Saturday evening.<br /><br />The section of roof had remained intact but fragile since the first collapse on Thursday.<br /><br />Fire and Rescue Service workers were immediately recalled from inside to ensure there were no further casualties.<br /><br />The total death toll might be higher than 54, as there are still seven people missing.<br /><br />The ambulance chief says the chances of finding more survivors was “close to zero”.<br /><br />President Andris Berzins spoke bluntly about the disaster in an <br />interview with Latvian television.<br /><br />“This is an event where we must clearly say that this is a large scale murder of many defenceless people and act accordingly. While not undermining the professionalism of our builders, I believe that we should call upon international expertise which is in no way connected with our construction business,” he said.<br /><br />The exact cause of Thursday’s roof collapse is unconfirmed, but the focus has turned to a rooftop playground and garden that was being installed.<br /><br />Many people gathered near the ruins on Saturday, bringing candles and flowers.