David Cameron has said a vote to leave the European Union would be a "high-risk bet for our children", as he pointed to today's intervention by the head of the World Trade Organisation (WTO) that negotiating new trade rules after Brexit could take "decades".
Speaking in central London, the prime minister attacked Vote Leave's campaign of "complete untruths", which he said are being used due to a lack of "any credible experts" backing their argument.
Mr Cameron said voting to remain in the EU "matters for your job... for the prices you pay in the supermarket each week, for the mortgage you pay, or your chances of getting on the housing ladder.
"It matters for your pension, the price of your family holiday (and) the money we have available to spend on your local hospital or school," he added.
Mr Cameron and the Remain campaign are on the defensive - perhaps for the first time in this campaign.
The head of the World Trade Organisation has warned Brussels as well as Britain would be required to negotiate post-Brexit arrangements.