18:00Six O'Clock News10/01/2021 Government says flexing of Covid-19 rules "could be fatal"BBC Radio 4 Duration: 15 minutes Sun 10th Jan 2021, 18:00 on BBC Radio 4 LWAvailable for over a yearListen nowThe health secretary has not ruled out tightening current lockdown measures in EnglandGenresNewsBrandSix O'Clock News Source: BBC Online