Britain has announced it will stop issuing student visas to nationals from Afghanistan, Cameroon, Myanmar and Sudan, part of what officials describe as an emergency response to a sharp rise in asylum claims from people who initially entered the country through legal visa routes.

The decision, confirmed by the UK Home Office on Tuesday, also includes the suspension of skilled work visas for people from Afghanistan. Authorities say the step is intended to slow a pattern in which visa holders later apply for asylum after arriving in the country.

Officials described the move as an “emergency brake” on visas, applied for the first time to citizens of the four countries after what the government called a surge in asylum claims made by individuals who had originally travelled to Britain on valid visas.

Government figures indicate that nearly 135,000 people have entered the UK legally on visas since 2021 and later submitted asylum claims. While some of those claims come from different visa categories, the authorities say the student route has become a growing concern within the system.

According to the Home Office, asylum applications made by students from Afghanistan, Cameroon, Sudan and Myanmar increased by more than 470 percent between 2021 and 2025. Officials say the growth in claims prompted the decision to restrict visa access.

The department said it had already reduced student-related asylum claims by 20 percent during 2025. Even so, people arriving on study visas still account for around 13 percent of asylum claims currently in the system, prompting what the government called the need for “further action”.

Home Secretary Shabana Mahmood said the government had taken what she described as an unprecedented step. She said the measure was aimed at those who seek to “exploit our generosity” by entering through legal migration routes before applying for protection.

The announcement follows a broader tightening of Britain’s asylum rules that came into effect a day earlier. Under the revised system, the Home Office will review refugee status for adults and their accompanying children every 30 months.

Previously, people granted refugee status received five years of protection before becoming eligible to apply for indefinite leave to remain and begin the path toward citizenship.

Under the new rules, refugees whose home countries are considered safe may be expected to return. Unaccompanied children will continue to receive five years’ leave while officials consider a longer-term approach for that group.

Those already in the UK asylum system will continue to be assessed under the previous framework.

The latest policy direction draws on an approach used in Denmark, where refugee status has been subject to review every two years since 2015 as part of one of Europe’s strictest immigration systems.

Migration has become a central political issue in Britain, with the hard-right Reform UK gaining ground in opinion polls on an anti-migration platform. The government’s latest restrictions arrive against that backdrop, as pressure grows across the political spectrum over how the country manages asylum claims.

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For now, the visa suspensions signal a sharper line from the Home Office, reflecting a broader shift in how Britain is responding to people who enter legally before seeking protection.