Downing Street has sought to put an end to Cabinet squabbling over Brexit by making clear that freedom of movement will end in March 2019.
Theresa May's official spokesman confirmed EU rules allowing Europeans to travel freely across UK borders would end on the day of Brexit, despite confusing signals coming from other Cabinet ministers.
He indicated further details of exactly how the UK will manage immigration would be published in due course, but said it would be "wrong to suggest" freedom of movement would continue unchanged.
It comes amid reports of deepening Cabinet splits over post-Brexit immigration, with one group of ministers led by Chancellor Philip Hammond arguing for a system close to the current one and another wanting tougher controls.
Speaking on Monday, Ms May's spokesman said: "Free movement will end in March 2019. We've published proposals on citizens' rights. Last week the Home Secretary said there would be a registration system for EU nationals arriving post-March 2019.
"Other elements of the post-Brexit immigration system will be brought forward in due course.
"It would be wrong to speculate on what these might look like or to suggest that free movement will continue as it is now."
An apparent cabinet split over the UK's approach to freedom of movement emerged as the Prime Minister went on holiday last week, when both Mr Hammond and Home Secretary Amber Rudd highlighted the need to avoid an immigration “cliff edge” that could starve both the public and private sector of skills.
Mr Hammond signalled free movement would continue for a three-year period in all but name after Brexit, with an added element of migrants having to register in the UK, while Ms Rudd sought to reassure business there would be no sudden drop in access to skilled EU workers.
Tensions then heightened after an interview with Brexit-backing International Trade Secretary Liam Fox was published, in which he insisted unregulated free movement after Brexit would “not keep faith” with the referendum result and highlighted that the Cabinet had agreed no stance.
There were reports that neither Dr Fox nor Foreign Secretary Boris Johnson were pre-briefed on the comments made by Mr Hammond or Ms Rudd, with Mr Johnson even forced to deny that he was preparing to resign over the issue.
Health Secretary Jeremy Hunt joined the fray on monday morning, defending the need for immigration from the EU and saying any post-Brexit deal must serve the need for the NHS to recruit staff from all over the continent.
He said: "It has to be a Brexit that works for business, it has to work for the NHS.
"The NHS needs to recruit doctors and nurses from all over Europe and that is going to continue after we leave the European Union."
He added there would be no cliff-edge after Brexit and there would be an implementation period of no more than three years after the UK's exit in March 2019.
Mr Hunt denied there were deep splits in the Cabinet over Brexit, instead claiming there was unity on securing a deal that restores control over Britain's laws, borders and money.
