A former head of communications for the British treasury is telling the public they need to prepare to spend “a month indoors” because of public unrest that will come from a looming economic collapse.

Damian McBride, who served under Prime Minister Gordon Brown, wrote on Twitter after today’s giant Chinese stock market crash:

“Advice on the looming crash, No.1: get hard cash in a safe place now; don’t assume banks & cashpoints will be open, or bank cards will work”

“Crash advice No.2: do you have enough bottled water, tinned goods & other essentials at home to live a month indoors? If not, get shopping.”

“Crash advice No.3: agree a rally point with your loved ones in case transport and communication gets cut off; somewhere you can all head to.”

McBride added that today was the stock market catching up with the terror over defaults that’s been impacting the bond market for the last few months.

McBride’s comments come as the world reels from the Chinese stock market crash and the UK’s FTSE 100 losing 60 billion British pounds in only a few hours, causing the largest one day fall of the market since 2008.  Over the last two weeks the market has lost over 160 billion British pounds.