David Cameron has announced new crackdowns on immigration from outside the European Union.

Measures to raise minimum salary thresholds, limit the number of work permits and the introduction of new business levies for businesses employing migrant workers are proposals the government wants to introduce in its drive to reduce net migration to the tens of thousands.

The plans, announced by Mr Cameron during Prime Minister's Questions, are also designed to protect domestic workers from being undercut by foreign workers and part of the government's efforts to boost the number of apprenticeships.

Net migration rose to 318,000 in 2014 (Getty)

Theresa May, the Home Secretary, will ask the Migration Advisory Committee committee to consider the government's proposals. They include plans to look again at how long particular sectors can declare they have a skills shortage, which allows firms in the sector to employ migrant workers.

Net migration reached a 10-year high of 318,000 despite Mr Cameron's 2010 election pledge to cut numbers to below 100,000.

Today's announcement follows the first meeting of the newly-formed Immigration Taskforce, one of the 10 committees set up by the Prime Minister since the election to focus on implementation.

Mr Cameron chairs the Immigration Taskforce, which is in charge of reducing net migration and focuses on domestic measures that the government can take to achieve this.

MAC will review the Tier 2 visa system. Under current rules, migrant applicants must be offered a job with a salary of more than £20,8000 and must have at least £945 in savings.

The announcement is part of the government's drive to boost apprenticeships (Getty Images)

Unveiling the proposals during Prime Minister's Questions, Mr Cameron said: "In the past it has been frankly too easy for some businesses to bring in workers from overseas rather than to take the long term decision to train our workforce here at home.

"They are going to advise on restricting our work visas to genuine skill shortages and specialists. They are going to look at putting a time limit on how long a sector can claim to have a skills shortage, because frankly they should be dealing with it.

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"We are going to look at a new skills levy on businesses who recruit foreign workers so we can boost the funding to UK apprenticeships.

"We are also going to be looking at salary thresholds to stop businesses using foreign workers to undercut wages.

"All of these steps combined with the measures that we are taking within the EU can help to bring migration under control, but more to the point make sure that hard working British people who get the skills, get the training, can get the jobs that will help them to build a better life."

Simon Walker, director general of the Institute of Directors, said: "Business cannot have a deaf ear to the public's concerns on immigration. However, focusing on the supposedly lower cost of migrant labour is a red herring.

"Among the 50% of IoD members who hire from abroad, just 4% say that the cost of labour has anything to do with it. The fundamental concern is about finding people with the skills needed by employers.