Mayor Boris Johnson has asked Thames Water bosses to an Olympic summit.
It follows two days of chaos on the caused by a burst water main.
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Made In Chelsea star Mark-Francis Vandelli has become the fourth celebrity to withdraw from the winter sports programme.
Just off Fleet Street stands a famous tiered tower. Designed by Sir Christopher Wren, it became the inspiration for the wedding cake.
The president of the respected Royal Institute of British Architects became the latest high profile figure to enter the row.