Lockdown rules in the UK are 'not boundaries to be pushed against', the vaccines minister has warned, as he admitted there was concern at non-compliance with social distancing measures in supermarkets.

As the second week of England's third national lockdown begins, ministers are considering how to achieve greater enforcement of social distancing and mask-wearing in supermarkets.

Vaccines minister Nadhim Zahawi said the government doesn't 'want to go any tougher' than the current lockdown rules, but suggested there could be a tightening of existing restrictions.

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