According to Ms Cooper, the number of such visas has gone up by 30,000 a year since the election, and no checks are being made on whether students study or overstay.
- Stronger checks on shorter-term student visitor visas
- "Faster, stronger enforcement" when illegal immigrants are found
- Unannounced border agency inspections, carried out by officers with arrest powers, for employers and colleges and exit checks at borders
- More prosecutions and higher fines for paying less than the minimum wage
- Measures to tackle "gangmasters" employing illegal migrants in the social care, hospitality and construction industries
- A ban on housing workers in over-crowded accommodation
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After the heatwave come the storms, with lightning flashes illuminating the night sky across much of the country last night.
An Independence Day event at a UK base has been cancelled by the US Air Force over security fears.
British firms predict the economy should sustain a "solid" pace of growth for the rest of the year thanks to lower oil prices and inflation.