UNIVERSITIES across the UK have warned the Prime Minister they will lose millions of pounds every year under tougher immigration policies.

In a letter to the David Cameron, 68 chancellors, governors and university presidents warned the Westminster Government's crackdown on immigration could lead to foreign students going elsewhere.

Signatories include former Liberal Democrat leader Menzies Campbell, chancellor of St Andrews University.

Last year, The Herald revealed that leading Scottish universities had written to the Home Secretary calling for institutions north of the Border to be made exempt from the new immigration laws.

Michael Russell, the SNP Education Secretary, has also attacked the plans.

The moves come after the Coalition's decision to tighten up the issuing of student visas as part of wider restrictions on immigration.

The UK attracts around one in 10 foreign students, generating around £8 billion a year in tuition fees.

Professor Eric Thomas, president of Universities UK, said: "The UK seems to be telling the world it doesn't welcome international students, while other countries are travelling in different directions.

"We are requesting that international university students should be removed from the net migration statistics for policy purposes."

Immigration Minister Damian Green said: "There is no limit on the number of genuine students who can come to the UK and our reforms are not stopping them. But we are determined to prevent the abuse of student visas as part of our plans to get net migration down."