THERESA MAY called on employers to train more British workers to fill vacancies after Brexit, after a leaked document suggested the UK is preparing to limit and discourage immigration from the European Union.

British Prime Minister Theresa May. — AFP

The prime minister said low-skilled immigration has hit the wages of British people and promised to control the numbers coming in after the country leaves the EU in 2019. May insisted Britain will welcome 鈥渢he brightest and the best鈥 from overseas, but her office made clear that businesses must ensure British workers benefit in future.

鈥淭here is a reason for wanting to ensure that we can control migration,鈥 the premier told lawmakers in London on Wednesday. 鈥淚t is because of the impact that net migration can have on people 鈥 on access to services, on access to infrastructure 鈥 but crucially it often hits those on the lower end of the income scale hardest. It鈥檚 important we bring in controls.鈥

May鈥檚 comments came after a draft government plan, leaked to The Guardian newspaper, set out measures to restrict immigration from the EU and prioritize British workers for jobs. Taken together, the plan and the premier鈥檚 remarks suggest May鈥檚 Tory government is determined to crack down on migration, despite failing to win a majority and a clear mandate in June鈥檚 election.聽

May and many Euro-skeptic Tories believe last year鈥檚 referendum vote to quit the EU was driven by a desire to regain control over borders and immigration policy, and are convinced that failing to tighten the rules would invite a backlash from the public.

The leaked document proposed that low-skilled migrants from the EU should be able to come to the UK for at most two years, with a limit of three to five years for those with more skills. Employers would be required to do more to recruit British workers. London Mayor Sadiq Khan, from the main opposition Labour Party, said on Twitter that the document was 鈥渁 blueprint on how to strangle our economy.鈥

However, May鈥檚 office insisted businesses need to step up. 鈥淲e want employers to do more to improve the skills of British workers and equip them with those skills, going forward,鈥 the prime minister鈥檚 spokesman, James Slack, told reporters.

The 82-page draft proposal isn鈥檛 a final plan but does show one strand of thinking about how British borders should be controlled. When May was home secretary, her department pushed hard to get net migration down to a Conservative target of 100,000 people a year. May recommitted herself to meeting this target on Wednesday but businesses are not convinced.

鈥淚t is clear the UK needs an immigration system which provides control while also enabling employers to access the foreign workers they need at all levels 鈥 whether it be short-term seasonal workers, intra-company transfers or permanent positions,鈥 Simon Nevin, head of employment and skills policy at the Institute of Directors, said in an e-mail.

He objected to further burdens on employers: 鈥淏usinesses are not the border agency. The Home Office is not 鈥榯aking back control鈥 if it expects employers to do the immigration checks for them.鈥

The Confederation of British Industry said an open approach to the UK鈥檚 closest trading partners was 鈥渧ital for business鈥 as it would help address key skill and labor shortages at a time when unemployment is at a 40-year low. Businesses would look for an 鈥渙pen but managed鈥 approach to immigration, said Neil Carberry, CBI managing director for people and infrastructure.

鈥淭hat means taking the initiative to guarantee those already here that they can stay, a transition period with limited changes so firms can plan ahead, and a final system for the EU that is simpler and more open than the complex work-permit system run for non-EEA (European Economic Area) countries,鈥 he said in a statement.

The proposals are unlikely to be well-received by the EU, which could further add to uncertainty for businesses and individuals, according to Caron Pope, a partner at law firm Fragomen. That鈥檚 frustrating companies, as they can鈥檛 make recruitment and staffing plans for UK businesses beyond March 2019, she said in an e-mailed statement.

The Food and Drink Federation, whose members often use migrant labor, was also hostile.

鈥淔ood and drink manufacturing, Britain鈥檚 largest manufacturing sector, will be alarmed,鈥 Ian Wright, its director general, said in a statement. 鈥淚f this does represent the government鈥檚 thinking, it shows a deep lack of understanding of the vital contribution that EU migrant workers make 鈥 at all skill levels 鈥 across the food chain.鈥 鈥 Bloomberg