The Cabinet is split on when to lift the lockdown with divisions over saving the economy competing with the need to suppress the coronavirus pandemic.
Chancellor Rishi Sunak is understood to be worried that a long clampdown could damage the economy irreparably. But Health Secretary Matt Hancock believes the protection of the NHS should be the overarching priority.
Others - who are understood to include Home Secretary Priti Patel, Education Secretary Gavin Williamson and Work and Pensions Secretary Therese Coffey - have been alarmed by the problems stacking up in their departments.
It comes amid calls from Labour for the government to set out a plan for how the UK could leave lockdown and follows reports one exit strategy being considered